Ill-treated and still hardworking: Walking The River Wandle

The turn of a year always generates reflection - and as I sped towards London on an unusual mid-month trip, I realised I'd not slept nearly enough. I was troubled by both physical and mental disquiet, suspecting I'd picked up some sort of minor virus to accompany a strange and unshakeable anxiety which had stalked me into the new year. I was restless to get underway yet simultaneously prematurely fatigued and it was easy, in these conditions, to begin question why I undertake these treks across London, and even if perhaps I should just cut my losses and stop? Too often, when challenged, I cleave quickly to the charge of pointlessness. I wonder if I'm perhaps trying to write myself into the shoes of thinkers and authors I admire, or to moderate others' experiences through my own strange schemes and invalid contrivances - but then I think it's far, far simpler than that. I realise, as my memories of childhood start to idealise a time of stability and simplicity, that I want to turn the map into the territory: the years of solitary wonderment at the pages of the A-Z, the drawing and redrawing of optimal routes across terrain I could barely even imagine. I've needed to be able to make these walks for many, many years. Why London when it's not 'my' city? Because it is no-one's city - and therefore eternally up-for-grabs. A tangled, dark mass which feels unknowable, but of which millions can picture their tiny corner in minute, local detail. A city where one can still discover things afresh and stumble into novelty unexpectedly, but also where thousands of years worth of sometimes dubious clues to the undocumented treasures have been laid by prior travellers. As I step off the train at Paddington and start a zig-zagging bus and rail journey south towards Croydon, I resolve to keep walking at all costs whether anyone is reading or not...

Curiously, a former colleague had been in touch during the week as I'd planned this walk - he sought an introduction to someone who could help him with a project he was beginning at the London Borough of Croydon. The footer of his email dispensed with the legalities and declared simply CROYDON in bold font, mimicking the Mayor of London's own block capital strapline. However I stepped out of West Croydon station into a decidedly lower-case tangle of unruly buildings running along the edge of the railway. In particular, a glowering, red-brick Victorian shopfront faced me from across the street and channelled me towards a crossroads where the more salubrious shopping areas began. I hadn't strayed into Croydon in years - and when I was last here it was a fleeting visit to cover the new tramlines. The reality of Croydon was both more interesting and much more confusing that it had appeared from the windows of a tram - a modern city centre imposed on an overgrown suburb as a mid-century modernist project, with a second generation of new glass towers already striking against the dull January skies. A forest of cranes signalled the ever-present redevelopment, while my route west lay between terraces which could comfortably have been resettled in Nottingham or Edgbaston. The town was divided by Roman Way - a sweep of dual carriageway, elevated to clear the railway and tramlines heading west from the centre and named for the disputed presence of the ancient route between London and the coast. Assumed to branch from Stane Street at Kennington and ploughing south through the Caterham Gap to cross the Low Weald, the existence of the road is based on fragmentary evidence - pieced together tracks, flint beds robbed for turnpike surfacing, and Anglo Saxon street-nomenclature along the way. It is comforting to feel anchored into the past though, as Croydon had an indistinct and impermanent feeling this morning. From the rapid cycle of demolition and rebuilding in the centre to the futureless and stateless people awaiting their fate at Lunar House, the nearby Immigration Compliance and Enforcement office, nothing felt like it was permitted to contemplate its future here yet. Croydon floated uneasily over the headwaters of the River Wandle. In the much-misused gazetteer of the Royal Mail's postcode directory, the centre of most major towns and cities is always 1 - the primary zone. In Croydon, it is an absence - CR0. Ground zero for both the river and the city was the same patch of boggy marshland. As I shuffled under the main road and headed for the water, I noted the road was appropriately named 'Pitlake'...

A short tramp through the suburban backstreets of Croydon brought me to the first of several Wandle Parks I'd visit today. Formerly two marshy fields - Froggs Mead and Stubbs Mead - the area was drained and established as a public facility in 1890. The River Wandle makes its first public appearance here nowadays. Despite being culverted in 1967 due to regular drying-up and appalling water quality, environmental improvements in that heady project-obsessed Olympic summer of 2012 saw the river uncovered and allowed to wander across the southwestern corner of the park as an enhanced public amenity. The stream begins to gather strength under the streets of Croydon, where seasonal streams or winterbournes from Caterham and Coulsdon merge to form a sizeable, relatively clean flow through the park, before disappearing again under New South Quarter, a surprisingly decent but depressingly predictably named development of new homes which hugged the course of the river with excellent access to the nearby Tramlink stop. Having crossed the tramlines I was forced to navigate the crescents of the development, feeling ill-at-ease in the domestic business of the obviously private zone but equally pleased to see the river cleverly managed into the development. The Wandle curved reedily and silently in a deep channel which bisected the development, before disappearing from view again to pass under Purley Way and the run of vast retail sheds which are slowly reclaiming large zones of former industrial brownfield vacated by the vast Croydon Gasworks. As I passed by an apparently recently opened John Lewis at Home superstore I reflected on this area - once largely empty marshland, fed by the remarkably fickle waters which make up the Wandle - streams which rose and fell with the season, sometimes disappearing entirely and then returning as a fatal tumult when heavy rain fell. On the northern horizon two chimneys towered over the low-rise retail landscape, remnants of Croydon's municipal power station which fed the street lighting locally until surprisingly recently and utterly complicated its renewal. The tall stacks are marooned in an Ikea carpark, surrounded by a newly laid pattern of streets which crackle with false memory: Volta and Ampere Way surround the store. They make a striking mark on the dull wintry sky - and there is always the temptation of strolling north for a picture - but I'm painfully aware of the risks the amateur explorer faces in lurking in Ikea carparks. At best, arrest is possible - at worst, perhaps trespassing on a trademark?

At a rather gloomy crossroads I turned west again onto Mill Lane, one of many streets in the Wandle valley with a similar name, giving a hint to the nearly constant industrial uses of the river. By the late Victorian era the waters turned the wheels at over ninety mills between Waddon and Wandsworth, many of which had existed from time immemorial. The Domesday book mentions a flour mill at the northern end of Waddon Ponds which remained operational as late as the 1870s but which was finally demolished in 1928 and has apparently now been replaced by a strangely ornamental modernist multistorey car park marooned among the grimy, crumbling factories of an early 20th century industrial estate of the type which fanned out along London's arterial roads. Access to the ponds was forbidden - further work was underway to make the green spaces around the river accessible here. A narrow path apparently once known as Brandybottle Hill climbed beside the line of trees which marked the edge of Waddon's backstreets, and soon the river was overground once again, flowing west into the exclave of Beddington Park which stretched east towards Croydon. I hedged my bets on walking the southern bank of the river here and soon found I'd possibly taken a wrong turning already, emerging on a narrow residential street simply called 'Bridle Path'. But as the rather quaint street wound north and west I was surprised to find myself walking alongside another brook which appeared on an older map to be the established line of the Wandle, divided here to power a Snuff Mill with an underground sluice still regulating the waters. The now more minor brook crossed under Hilliers Lane, emerging again into Beddington Park to rejoin the branch of the river which I'd lost track of a few streets before. Not for the last time today had the Wandle's indecision and bifurcation confused me. Walking in the park was quiet and pleasant, but my physical condition was taking its toll already. I slogged along the northbound path towards the Pavilion Café in the hope of a brief rest, but I found it already overspilling with the families of junior football players who were taking part in a Little League tournament nearby. I turned southwest instead, striking out across the wet grass of the open park towards a knot of trees indicating the course of the river. The huge expanse of green space here is a remnant of the Carew family estate - formerly a deer park with their home and the village church neatly squared away within acres of parkland which still has a curiously rural feel today. The house remains in the midst of the park, an impressive formal Tudor manor which now serves as a Special School. The Carew family finally left the area in 1859 after a turbulent few centuries which saw them fall in and out of favour with the royal court. In 1538 Thomas Cromwell seized the hall and lands from Nicholas Carew whose popularity had apparently begun to irritate the notoriously easily rankled Henry VIII. The family found more stable patronage under Queen Mary with their lands in Beddington restored to Francis Carew who perhaps advisedly took to carefully improving the gardens and lands around the hall rather than attempting to further make a name for his family at court. After the Carews departed the building became a 'Female Orphan Asylum' before slowly progressing towards its current purpose. Close to the house, the confusingly named Canon Bridge's Bridge spans the Wandle, a low red-brick decorative parapet memorialising the Rector of the nearby church from 1864-91. I regained the footpath in the hope of walking beside the lake in Grange Gardens where the Wandle broadens to form yet another former millpond - this time for a long closed paper manufactory, but I was soon thwarted by more improvement works and found myself unceremoniously booted towards the main road a little north of the gastropub which now inhabits The Grange. After passing under Wallington Bridge the river disappeared between suburban back gardens, and I needed to decide where the head next...

By now I was realising that understanding the historical or geographic journey of the Wandle was far from a simple task and as I headed south again into the former village of Wallington, which now seemed to consist of little more than a permanent traffic bottleneck, I noted the shallow rise of land to the west which divided two branches of the headwaters of the river. The branch I'd followed from Croydon now turned north, but there was a western stream rising at Carshalton Ponds which lay a short climb away along Butter Hill. This stream is The Wrythe which gives its name to the tiny hamlet-like settlement which sits north of Carshalton, retaining a curious isolation from its surroundings in no small part due to the natural boundary of the river. As I descend from the twisting course of Butter Hill to pass under a low railway viaduct the stream appears beside the road, a busily bubbling green-fringed channel which runs almost unseen towards the nature reserve at Wilderness Island where the branches of the Wandle finally meet. They tumble together at a weir which disappears under light industrial units built on the site of a former leather mill. Looking back across at the damp, green shore of the island, it seemed a miracle that it had survived so relatively unscathed among the industrial and residential developments which crowd around the Wandle - and perhaps more remarkable still that the river has remained above ground for much of its course to the Thames. The path emerged onto Hackbridge Road, the original site of this tiny village having apparently almost entirely succumbed to more of the drab industrial shacks which seemed to populate every spare corner of land around here. The centre of the village, such as it was, had packed up and moved northeast to meet the railway - my path was quiet and my walking uninterrupted. Except, that is for swarms of midges which by my reckoning shouldn't be out here in January. As I skirted the edge of Watercress Park - named for the naturally occurring crop which was harvested and indeed cultivated along the river until pollution made it entirely unsafe - I found myself plunging into a cloud of flying insects which it was impossible to avoid inhaling and swallowing. It's a reminder that this was once a significantly broader expanse of marshy wetlands, and that it is only relatively recent development which has penned the river into a narrower and less complicated course - but there is also a troubling signal that seasons aren't quite how they ought to be nowadays, and that a cold and damp January day feels almost like March.

At this point on my journey I realised with some surprise that I'm in a part of the city I barely knew, and of which I hardly even have a mental map. I've passed above this landscape many times on trains and trams, and even changed at stations nearby, but I have only the slightest grasp on the geography. Years of walking in the north and east provide me with frequent shocks of recognition as the familiar districts tessellate satisfyingly together, their landmarks appearing on cue - but here in the south I was as close to being lost as I've been for a long time. The river provided a constant guide, but the whirl of Morden, Merton and Mitcham around it didn't yet make any
sense to me. I figured it would come in time. My meandering route between the headwaters of the river earlier in the day also meant that I was barely further north than my starting point at West Croydon and apparently only a little further west. The land here seemed to remain divided on some long-observed strip system - a long ribbon of industry running close to the river, then to the east a broader stripe of wasteland and open space, much of it scarred by past use for landfill and waste processing. On the western edge of these zones, the river persists, running through reclaimed parkland and frequently dividing into abandoned millstreams and drainage ditches before recombining. The water also seems clean despite a surprising amount of unidentified and ominous looking pipes and gullies dribbling into its course - though as I pass through Poulter Park, named for Harry Reginald Poulter - a local architect of the early 20th century, a large lifeless fish stares up, empty-eyed from the stony river bottom. The Wandle has been abused for centuries, and more than once named the dirtiest water in London. While it is arguably cleaner now that for many decades with much of the filth-producing industry which once blighted it now disappearing, in common with other urban rivers it faces new challenges from misdirected domestic drains and surface-runoff. At the edge of Poulter Park, I take a wrong turning and find myself walking the scrubby, overgrown path on the perimeter of Watermeads Nature Reserve rather than the recently improved path beside the river. This sliver of wetland remained off-limits to most of us until 2015, having once been home to four mills and a trout stream until it was purchased by the River Wandle Open Spaces Commitee in 1913 and its management vested in the National Trust in memory of Octavia Hill whose efforts to protect green spaces like this 'ill-treated and still hardworking little river' inspired the local burghers. While public access to the river and wetlands is now much improved here, my route between the drainage ditch and the high wire fence of the neighbouring gym wasn't nearly as pleasant. The unmistakable smell of human waste drifted from the ditch in clear evidence of a drainage problem nearby, and the midges were back with a vengeance in this fertile breeding ground. Already feeling sick and tired, I wondered again at the wisdom of taking this walk today? The miasma and associated wildlife dogged me into Ravensbury Park, an otherwise attractive green space which seemed to be a chosen hang-out for small groups of glowering youths tossing spent Relentless cans into the river and practising looking as furtively urban as possible in Collier's Wood - an otherwise quiet and apparently fairly well-to-do sector of the suburbs. I kept a straight face as the youngest, whitest member of a group inexpertly and solemnly flicked a cigarette end away while referring to his equally pasty-faced colleague as 'blud', before carefully crushing the butt with the toe of a gleamingly fresh Christmas present trainer. I wasn't sorry to emerge onto relatively dry land and to follow the road a little way along the walled gardens of Morden Hall Park. Even this diversion didn't take me far from the water as the wall ran beside a millstream which flowed west from the main line of the river. It's easy to assume the wide, green spaces of Morden Hall's extensive deer park are ancient in origin - but they date in fact only from the relatively recent 1770s. While records indicate that an earlier house seems to have existed here, this rather grand home of a Tobacco Merchant is testament to how recently the southern suburbs have grown on the back of the emerging middle classes and their industry. Even a hundred years after the building of the Hall it would have delighted in a rural location with very little development around it despite the railway running along the eastern edge of the park. Now a National Trust property with a profitable garden centre and café on site, the main Hall is an exclusive wedding venue - though a number of interesting survivals are maintained in the park including a watermill formerly used to process tobacco. A large area of the grounds close to the eastern edge of the site has been returned to wetland, and after swiftly crossing the churning A24 to purchase refreshments on Merton High Street I headed back into the park to regain the line of the river by way of the Boardwalk, a reassuringly solid wooden walkway which zig-zags around the wetland landscape, reminiscent of the Marsh Trail I'd encountered in Seattle. I paused at a quiet spot on the boards to take refreshment and to enjoy the reflections of steely skies and tall reeds in the silvery waters while an intrepid photographer splashed and clambered around finding unusual angles on the scene nearby. Setting off again, I crossed the Tramlink line to Wimbledon and set out along a long, apparently canalised section of river which was stalked by the ubiquitous line of pylons which I never fail to encounter when walking near rivers. The landscape I was walking through now set the scene for much of the rest of the river's journey - a broad and sluggish river running quietly and anonymously behind crumbling industrial sites on its slow progress north. Perhaps the Wandle had only survived intact because it appeared to have entirely slipped from the minds of those who live nearest to its waters?

Given the entirely practical approach to the Wandle taken by industry, a perhaps surprising survival alongside the river is Merton Abbey Mills. This complex of former mills and factories on the site of Merton Priory has a remarkable place in the history of British textile manufacture. Merton Priory was destroyed during the dissolution of monastic properties in 1538, having been a seat of ecclesiastical learning since 1114. During the tenure of the Priory, both St. Thomas of Canterbury and Nicholas Breakspeare who became Pope Adrian IV studied in its precincts. The priory has a solid civil history too - and the Statute of Merton, enacted at a parliament summoned at the priory by King Henry III in 1235 is the oldest recorded English parliamentary statute. By 1667, textile manufacture had begun at the mills on the site of the former Abbey, and soon refugee Huguenot silk weavers were working at the Mills, with calico printing also taking place from the mid-eighteenth century. This was clearly a consideration for William Morris who located the textile printing works of Morris & Co. on the site in 1881, employing weavers from Spitalfields who were still regarded as the pinnacle of the profession. Liberty & Co. joined Morris at the site in 1904, with both businesses using the Wandle's waters and the wetlands nearby to grow dye plants for the high quality fabrics. In 1940, Liberty took over the Morris works and continued to produce their designs on the Abbey Mills site until 1972. Some smaller traders hung on to the tradition, but by 1982 however all textile production at Merton had ceased. In a appropriate rebirth though, this historic corner of the Abbey Mills site remains a cluster of workshops and buildings now given over to craft stalls, restaurants and entertainment venues. The only remains of the very comprehensively destroyed Priory buildings are located in a foot-tunnel under the road which leads pedestrians to the huge retail complex on the banks of the Wandle. I stayed above ground, following the broad curve of the river around the gigantic silvery flanks of a Sainburys/M&S megastore before passing under a contemporary reconstruction of the Abbey gateway and into the quiet and aptly-named terrace of Wandle Bank which ran the length of Merton Bus Garage, home to London General. Buckling tree roots and cars parked haphazardly made walking along the railings beside the river a challenge, but I was able to amble along the middle of the quiet backstreet, sticking close to
At Bewley Street, a development of recently-built apartments had resulted in a brief section of freshly-made footpath along a particularly pleasant, tree-hung stretch of the river. Beyond the trees, the concrete ghosts of the Wandle Valley Storm Tanks marked the only remaining evidence of the huge sewage works which dominated this section of the river from 1877 until 1970. A stocky wooden footbridge crossed the river nearby, descending into a wide span of pleasant edgeland between road and railway. There had been a plan to build a new stadium for Wimbledon Football Club here for many years, one of fourteen sites in Merton which the club had considered and rejected before finally decamping to Milton Keynes in time for the 2003 season, forever severing ties with the area. Considerable pressure from local residents and the fact that this riverside site would share many of the frustrations which the club already endured at the Plough Lane further downstream site meant this site was soon discounted, with the plans abandoned by 1989 when Merton Borough Council designated this area a nature reserve. It seems likely that prior to purchase for use by the waterworks the land would have been water meadows, and slowly the site is returning to nature with the ribs of concrete under the grass slowly disappearing and the trees along the river beginning to obscure the bank from view. A weak but persistent sunshine reflected from the rank of pylons which ranged along the valley floor, and I felt like I was on more familiar walking territory here as the path left the river and headed briefly eastwards to navigate a graffiti-adorned low underpass beneath the loop of the Thameslink lines from Wimbledon to Sutton. Turning west again to skirt a sliver of industrial land between the railway and Lambeth Cemetery, the path shadowed the tall, moss-covered concrete retaining walls which enclosed the final metres of the River Graveney deep below. The Graveney met the Wandle at a rather curiously placed viewpoint which strode out onto a platform on the thin tongue of land between the rivers, suspended above the water. I didn't linger here as I was aware I was nearing one of the few spots where I'd encountered the River Wandle before, almost fourteen years ago in January 2004 in fact, when I'd trekked out to Lambeth Cemetery on the heels of William Kent. I recall the uncertain walk into the strange, semi-industrial zone east of Wimbledon, along Plough Lane, and over the Wandle where I was now standing. Little had changed, the area was still a mess of pylons and prefabricated warehouses, with the corrugated iron flank of Wimbledon's doomed greyhound and speedway stadium still clunkily overshadowing the north side of the road awaiting demolition. I crossed the road, dusty from passing commercial traffic despite the recent wet weather, and disappeared along the riverside path separating the water from the recently built residential development which had appeared at some point in the last decade or so on the vacant land which had once accommodated the football stadium, already demolished before my first visit. It felt strange after a day of almost entirely alien scenes to recall a moment on a much earlier walk so vividly. The path here was easy to walk and the weather had improved to the point that there was blue sky overhead. I'd begun to feel a good deal better, and despite feeling tired I had the first inkling that actually I could manage the whole of my planned route despite the challenges. The Wandle was a sluggish green now, a strange combination of the weedy riverbed and the reflection of the overhanging trees - but it also recalled my very earliest association with the River as a mysterious presence in Michael de Larrabeiti's Borribles trilogy. I've written before about the effect that this oddly grown-up take on a gothic urban fantasy had on my view of London, with a gang of lawless children who have been freed from the shackles of parental responsibility using the River as a highway of sorts through the territory of rival factions of city denizens. I've also written before about how this chance walk reignited a strand of exploration which continues even now...

Once the Wandle had been a pleasant stream, but years of industrialization had turned it into a treacherous ooze of green and muddy slime, a mixture of poison waste, decomposed rubbish and undigested lumps of plastic which rolled slowly along the river's surface as it slid like a thick jelly down to the Thames.
Michael de Larrabeiti - The Borribles - 1976 This curious tale - a sort of warped analogue of the pastoral, environmentally-friendly Wombles who stalked a fictional version of nearby Wimbledon Common for stray litter - had a strange and lasting effect on me. Not least in the idea that there were other rivers in London, and that they might not be well-trodden or widely known, but that they led somewhere, and had a purpose. The final book in de Larrabeiti's trilogy - Across the Dark Metropolis - pitted the army of mischievous and sometimes amoral child-creatures against a dystopian reimagination of the Metropolitan Police force, which may not have been too far from the now emerging truth of South London's corrupt and lawless coppers of the mid-1980s. It was though, all a little too real and present for his publisher who just days after rioting culminated the killing of PC Keith Blakelock at Broadwater Farm decided that "the present climate of urban Britain is not the climate in which we would wish to publish this book". It finally emerged a year later, and of the trilogy perhaps best captured his unapologetic revolutionary Socialist response to the division and inequality of London in the Thatcher years. De Larrabeiti died in 2008 - a champion of the underling to the end. It's tempting to hope that despite witnessing a new age of inequality beginning to divide the city, he also lived to see the green ooze of the Wandle flow clear again. Certainly the London his characters stalked in the mid-1970s is largely now hidden from view - unless of course we decide to explore these dank river trenches and hidden culverts where the past is never far from the surface. I'd like to think that despite different political approaches, my own explorations honour his ability to make the commonplace mysterious and interesting.

The path continued, with the river winding towards the Thames through more industrial zones which served to divide Wimbledon from Earlsfield. As the afternoon had turned a little warmer and having finally settled into the rhythm of the terrain I was rather sorry that I was approaching the last leg of the walk. The path was mostly deserted and the calm churn of the river as it passed by silent factories and yards closed for the weekend and lapped under tumbling sheds overhanging the riverbanks from their allotments was at last relaxing me. Before long the path took me over a footbridge and dumped me unceremoniously onto the backstreets of Summerstown, where the boroughs of Merton and Wandsworth face off. This tiny suburb has largely been written out of modern maps, but in 1913 when Edward Thomas made an epic cycle journey from Clapham to the Quantocks - he saw the curious contrasts of the rural and industrial faces of the Wandle clearly:

The main part visible was twenty acres of damp meadow. On the left it was bounded by the irregular low buildings of a laundry, a file and tool factory, and a chamois-leather mill; on the right by the dirty backs of Summerstown. On the far side a neat, white, oldish house was retiring amid blossoming fuit trees under the guardianship of several elms, and the shadow of those two tall red chimneys of the electricity works … A mixture of the sordid and the delicate in the whole was unmistakable.
Edward Thomas - In Pursuit of Spring - 1914 The discontinuity in the Wandle Trail footpath has been on the radar of Merton Council for years, but as the river heads off under the railway and into the pattern of suburban streets here, it's difficult to see how a path close to its line could be found even by the most determinedly community-minded of local authorities. Instead I'm directed into busy Garratt Lane - Earlsfield's de facto High Street. The usual, ubiquitous coffee chains clustered around the station entrance among some unexpectedly high-end local stores which were perhaps not the image of this part of London which I'd carried with me for years. It was tempting to linger here and attempt to understand how this part of the city ticked, but I was close to my goal now and despite aching feet I thought I'd be able to make it to the Thames. I turned west again after passing under the railway and found my way into King George's Park where the River soon reappeared on the eastern edge of the space, close to the backstreets of Earlsfield. The sun was beginning to sink low into the western sky, but the break in the relentlessly bad weather of the last few weeks had coaxed out a good number of families who were walking and playing in the well-kept park. The five tower blocks which flanked the Southside development cast long shadows as I walked towards them in order to get my last glimpse of the Wandle before it disappeared under the centre of Wandsworth. The river has been straddled by development here since 1971 when the Arndale Centre opened, spanning the waters and regarded in its day as something of an engineering miracle. At the time, the Wandsworth Arndale was the largest indoor shopping centre in Europe, and it contained a mix of housing, retail, offices, a large indoor market hall and even a nightclub. The centre declined in popularity in the intervening years as anchor tenants Sainsbury and Tesco decamped to larger, purpose-built premises nearby leaving the all-too-familiar pattern of shuttered units and 'value' stores which has blighted a number of centres of a similar vintage. The centre struggled on to the turn of the century, until a comprehensive modernisation and redevelopment began in 2004, largely now complete despite setbacks due to the economic downturn. Little of the original 1971 fabric remains evident aside from the contemporary residential towers which dominate the Wandsworth skyline from all directions. I caught my last glimpse of the river here at Mapleton Road, balanced on a tiny pavement with a steady traffic of bus passengers tramping by seemingly unaware of what lay beneath their feet. The stream divided, flowing swiftly and darkly into two concrete tunnels under the building. Above the river a car park access road disgorged vehicles from a similar opening in the building, the river largely forgotten by the motorists queuing to escape Southside. Turning north into Garratt Lane again, I was shocked by the press of people which I faced. While the walk had been far from solitary by my standards the crowd of shoppers, eyes fixed on the bargains and attention diverted from their immediate surroundings, was more of a challenge to navigate. I weaved and slalomed my way to Wandsworth High Street, swiftly crossing and delving into the hinterlands behind the Ram Brewery to escape a busy Saturday scene. The redevelopment of the brewery and the riverbanks beyond continued behind hoardings decorated with hyper-real scenes of future Wandsworth - everyone seemed happy in these artists impressions, and just like now the river appeared to be ignored entirely by the device-absorbed couples wandering the unreal new world projected on the barriers. It was good to be away from the tide of present-day people blundering around the shopping area, and the landscape north of the High Street gave a tantalising clue as to how the area may have looked as recently as the middle of the last century. The maritime air of the place was evident, with long brick walls and low sheds running along the muddy creek to which the Wandle had given way for its final few yards. I turned into a narrow, curving street reassuringly named The Causeway and tried to ignore my fatigue for just a little while longer.

After crossing the point where the river divided, with Bell Lane Creek forking muddily to the west and Wandsworth Creek - sometimes obscurely known as Frying Pan Creek - to the east, the Causeway became a footpath onto a tiny sliver of land which sat in the midst of the two streams. Near this point a tidal bell hung, activated by the rising and falling of the river and ringing four times each day - but sadly not at the time I was passing by. The land here had an impermanent and shifting feel, with the Wandle's marshy delta coerced into the narrow channels between high flood walls and muddy banks. The Causeway originally linked Wandsworth Plain, the site of the original settlement here, with the river and would once have been a busy route between the Thames and the village. Today it was near silent, and as I tramped on, the smell of the tidal river began to replace the fumes of the nearby A3. Beside the creek the huge Western Riverside Waste Authority's works brooded, quietly dominating the waterfront here and diverting the riverside path inland to accommodate a wharf for offloading refuse. The area occupied by the depot had once been water too: In 1801 the Surrey Iron Railway Act authorised the construction of a basin connected to the Thames and running as far south as Wandsworth High Street at a spot known then as Ram Field. Freight would be transferred to ships from railway wagons here, which had begun their journey from "a place called Pitlake Meadow in the town of Croydon" - the start of my walk today. The original plans had favoured the proven technology of a canal for the entire distance, providing a bypass around the numerous mills which blocked the Wandle to navigation, but surprisingly the plan for a cheap and somewhat poorly built railway prevailed. The line was never successful and its poor construction standards necessitated frequent mending of rails broken by the weight of loaded wagons. By 1848 the railway was being removed, the company having been unsuccessful in attempting to sell it to the London Brighton & South Coast Railway as an extension to their growing network. The canal basin found a second life when, in the ownership of the McMurray family, it began to serve a paper mill close to the site of the modern-day shopping centre which continued in operation until the 1920s along with providing access to the Ram Brewery. Sections of the canal basin appear to have begun to be filled in to accommodate new industrial buildings during the 1930s and by 1956 the basin had disappeared entirely from the map, only evident in the presence of a bridge parapet pointlessly lifting the railway over an expanse of car park which had once been the wharf.

The causeway path led out onto the narrow tongue of land where a generous bench faced out onto the Thames beside Sail, Sophie Horton's blue steel sculpture which formally marked the end of the Wandle's journey. On the bench, a young man was having an apparently animated and frustrating telephone conversation, which he'd clearly thought would be private out here at the confluence of the rivers where no-one much seemed to come, at least on a January afternoon. He eyed me with dismay and mild disgust, and wandered back towards dry land leaving me to rest alone on the ship-like curve of railings and to contemplate my walk. It had sometimes felt unlikely that I'd finish today's trek - despite the distance not being challenging on paper at least. The tired, sick feeling which had stalked me lifted briefly with the satisfaction of completing the walk, but soon descended with a vengeance as the sky churned into a grey-black threat which the brown tidal waters couldn't adequately reflect. The muddy creek which flowed out to the Thames seemed a far cry from the bubbling brook which had twisted across the parklands of Croydon, but did at least fit with the menacing Wandle of unctuous and deceptive green sludge which had first intrigued me in Michael de Larrabeiti's writing. I recall being a shy, quiet child who had lived out these adventures purely in my mind, marvelling at parts of a city which I didn't expect to ever see. Somehow being out here, at the mouth of the river which felt like the spark of a thirty-year obsession was a special moment, and one I was a little surprised I'd not sought out before. The mysterious southern rivers felt like a new project for a new year, one to be savoured and filed between excursions in less alien territory. My prejudice in favour of the north wouldn't easily be overcome - but now I was sure there was a reward in persisting.