How Wild Swimming Communities Are Growing Across Britain

Something significant has shifted in how people across Britain relate to their rivers, lakes, reservoirs, and coastlines. What was once considered an eccentric minority pursuit — stripping off at a freezing loch or plunging into a chalk stream before breakfast — has become one of the fastest-growing outdoor leisure activities in the United Kingdom. Wild swimming communities have formed in nearly every corner of the country, from the salt marshes of North Norfolk to the sea lochs of the Scottish Highlands, and the growth shows no sign of slowing.

According to Sport England’s Active Lives Survey, open water swimming participation increased by over 200 per cent between 2017 and 2023, with an estimated four million people now swimming outdoors in Britain each year. That figure encompasses everything from casual summer dips at Windermere to organised cold water immersion sessions in January. Understanding why this growth has happened, where it is concentrated, and what it means for Britain’s natural spaces and communities requires looking closely at the people, organisations, and landscapes involved.

The Scale of Growth and What Is Driving It

The acceleration in wild swimming’s popularity did not arrive from nowhere. Several converging forces produced the conditions for a mass movement to emerge.

The Mental Health Catalyst

Research from the University of Exeter’s European Centre for Environment and Human Health, published in the International Journal of Environmental Research and Public Health, has provided a robust evidence base for what many swimmers already knew from personal experience: regular cold water swimming produces measurable improvements in mood, reduced anxiety symptoms, and improved resilience to psychological stress. The Blue Mind theory, developed by marine biologist Wallace J Nichols, argued that proximity to water triggers a neurological state of calm and creativity. British researchers at University College London followed up with specific cold water immersion studies showing that repeated exposure gradually trains the body’s stress response, which may explain the widely reported sensation of feeling calmer in daily life after establishing a regular open water swimming habit.

This scientific endorsement gave the activity legitimacy and provided journalists, social media influencers, and GPs with a compelling narrative. Suddenly, wild swimming was not just something people did for fun — it was something they did for their health. The BBC, The Guardian, and The Times all ran extensive features on cold water therapy between 2019 and 2022, and the result was a significant recruitment of new participants who might never have considered outdoor swimming before.

The Pandemic Effect

The COVID-19 lockdowns of 2020 and 2021 forced millions of people to rediscover their local green and blue spaces. With gyms, leisure centres, and public swimming pools closed, many turned to rivers and lakes as the only available option for exercise and mental respite. The Outdoor Swimming Society reported a substantial increase in new members during this period, and anecdotal reports from popular spots including Hampstead Heath’s bathing ponds, the River Wye in Herefordshire, and the many tarns of the Lake District pointed to significant increases in footfall.

Crucially, many of those who discovered outdoor swimming during the pandemic did not abandon it when restrictions lifted. Instead, they continued through autumn and into winter, crossing the psychological threshold that separates seasonal dippers from year-round cold water swimmers.

Social Media and Community Formation

Instagram, Facebook Groups, and more recently TikTok have played a central role in the growth of wild swimming communities. The visual appeal of the activity — clear mountain pools, glassy dawns on highland lochs, the dramatic contrast of steam rising from winter bathers — translates naturally into shareable content. Groups like Wild Swimming UK (which has more than 250,000 members on Facebook), regional groups for Scotland, Wales, and individual counties, and local WhatsApp networks have created a social infrastructure that allows newcomers to find swimming companions, share location information, and receive advice on safety and etiquette.

This social media architecture has done something remarkable: it has made wild swimming feel accessible to people who might otherwise have perceived it as a solitary, intimidating, or niche activity. When you can join a group chat and arrange to meet six like-minded people at a local river at 7am on a Thursday, the barriers to participation fall considerably.

Key Organisations Shaping the Wild Swimming Movement

Britain’s wild swimming growth has not been purely organic. Several organisations have provided structure, advocacy, safety guidance, and community infrastructure.

The Outdoor Swimming Society

Founded in 2006 by Kate Rew, the Outdoor Swimming Society (OSS) was among the first organisations to systematically advocate for open water swimming as a legitimate, mainstream activity. The OSS publishes the Wild Swim Map, which now lists thousands of swimming spots across Britain and Ireland, and it campaigns actively on issues including water quality, access rights, and the liability concerns that have historically discouraged landowners from allowing swimming on their land. The OSS’s annual Wild Swim Map has become an indispensable resource for the community, and the organisation continues to influence policy discussions around public access to water.

Swim England

Swim England, the national governing body for swimming in England, has increasingly engaged with the open water sector. Its Open Water Swimming guidance and the Open Water Swimming Safety Code were developed in response to the sport’s rapid growth and the associated concern about accident prevention. Swim England also accredits open water swimming coaches and works with local clubs to establish structured, safety-conscious programmes for swimmers transitioning from pools to open water environments.

The River and Lake Swimming Association

The River and Lake Swimming Association (RALSA) campaigns specifically for legal access to inland waters in England and Wales. Unlike Scotland, where the Land Reform (Scotland) Act 2003 established a statutory right to access most land and inland water for recreational purposes, England and Wales operate under a much more restrictive framework. In England and Wales, the public has no automatic right to swim in rivers, although there are notable exceptions where historic public rights of way cross water, where waterways are publicly navigable, or where landowners have explicitly permitted access. RALSA works to change this legal position and to negotiate access agreements in the meantime.

Local Swimming Clubs and Community Groups

Below the level of national organisations, hundreds of local wild swimming clubs have formed across Britain. Groups like the Dart Swimmers in Devon, the Serpentine Swimming Club in London (which dates to 1864 and is one of the oldest in the world), the Brockwell Lido Swimmers in Lambeth, and the Solway Swans in Cumbria represent the community-level infrastructure that actually brings people together in the water. Many of these groups organise guided swims for beginners, run safety awareness sessions, and serve as informal advocates for water quality in their local catchments.

Where Britain’s Wild Swimming Communities Are Strongest

Wild swimming communities have established themselves across the country, but certain regions have developed particularly vibrant cultures around the activity.

Scotland

Scotland’s unique legal framework gives it an advantage over England and Wales. The Land Reform (Scotland) Act 2003 grants all people the right to be on and cross most land and inland water for recreational purposes, subject to responsible behaviour as outlined in the Scottish Outdoor Access Code. This means that Scottish wild swimmers can legally access the vast majority of the country’s 30,000-plus lochs and many river stretches without needing landowner permission. Communities in the Cairngorms, around Loch Lomond and The Trossachs National Park, in the Northwest Highlands, and across the Hebrides have embraced wild swimming as a defining element of their outdoor culture. Groups like the Highland Wild Swimmers and various loch-specific communities organise year-round immersion sessions, including the tradition of New Year’s Day dips that draw large crowds to coastal and inland sites.

The Lake District

The Lake District National Park in Cumbria is arguably the spiritual home of English wild swimming. The lakes themselves — Windermere, Ullswater, Coniston Water, Grasmere, Wastwater — offer some of the most iconic open water swimming settings in Britain. Windermere alone attracts tens of thousands of wild swimmers each year. The Great North Swim, an organised open water swimming event held annually on Windermere, has grown to become one of the largest open water swimming events in the world, with participation figures regularly exceeding 10,000 swimmers across multiple distances. Beyond the events, informal communities swim year-round, and local businesses including cafés, outdoor gear retailers, and accommodation providers have adapted to serve the swimming community.

Cornwall and the South West

The South West has long had a strong outdoor swimming culture anchored in its coastline. Cornwall’s sea swimming communities cluster around coves, headlands, and tidal pools, with locations like Prussia Cove, Porthcurno, Bedruthan Steps, and the natural lido at Wembury drawing dedicated local groups. The Outdoor Swimming Society’s roots in this region helped establish it as a centre of the national movement. Sea swimming groups operating on WhatsApp and through Facebook have proliferated across Devon, Dorset, Somerset, and Cornwall, many of them meeting before sunrise throughout the year.

Wales

Wales has benefited from both its dramatic natural landscapes and growing interest in health and wellbeing tourism. The Brecon Beacons National Park (now Bannau Brycheiniog), Snowdonia (Eryri), and the Pembrokeshire Coast National Park all contain significant concentrations of wild swimming activity. The River Usk, the River Wye, and the many mountain pools (known locally as llyns) of Eryri attract swimmers from across Wales and beyond. Welsh Water has engaged with the wild swimming community on water quality issues, and Visit Wales has increasingly featured wild swimming in its outdoor tourism marketing.

Moving Forward

Once you have the fundamentals in place, the possibilities open up considerably. The UK offers fantastic opportunities for anyone interested in this hobby, and with the right foundation you will be well placed to make the most of them.