Swimrun Events in the UK

By Richard Mitchell and Mogsy Ford

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Swimrun Events In The UK

Your Complete Guide to Races, Locations & Distances!

Here is a list of ALL currently listed swimrun organisers and events in the UK. If you want to jump down to a specific one, just click on the appropriate link below. 

If you want to browse through them all, just scroll down in your own time! You may discover something unexpected...

Swimrun Events In The UK

Weswimrun.org — Eliminator Events in Liverpool and Wales

If you're looking for something a little different, Weswimrun.org hosts 3 Eliminator-style events that bring a competitive edge to the swimrun format.

The Eliminator concept means athletes are progressively cut from the race at checkpoints, so only the strongest make it to the finish — it's intense, and exciting. Their events are held in:

• Liverpool, England
• and in Wales at Tal Y Llyn 
• and Aberdyfi. 

Tal Y Llyn is a glacial lake nestled in the Snowdonia mountains, offering cold, clear water and dramatic mountain scenery. Aberdyfi sits at the mouth of the Dyfi Estuary, with a mix of estuary swimming and coastal running. These events suit athletes who are comfortable in open water and want to test themselves against a competitive field.

Love Swimrun — Llanberis, Wales

Wales continues to punch well above its weight in the world of swimrun, and Love Swimrun Llanberis is one of the crown jewels of the UK calendar. Set in the heart of Snowdonia, this event offers a choice of 6km or 16km, catering to both newcomers and those ready for a more serious challenge.

The 16km course in particular is a proper mountain swimrun experience, taking athletes through some of the most iconic landscape in Wales — think slate-grey lakes, rocky ridgelines, and the brooding presence of Snowdon looming overhead.

**This event is back for 2027**, so now is the time to start planning and training. If you've been looking for a reason to visit Snowdonia, this is it!

Scilly60 — Isles of Scilly

The Isles of Scilly Swimrun, held by Scilly60. This event takes place on the spectacular Isles of Scilly, a remote archipelago off the tip of Cornwall.

There are 3 race distances on offer, and while they might not look particularly long on paper, don't be fooled — the real challenge here is the long swim legs in very cold Atlantic water.

The Scilly60 is not for the faint-hearted. Swimming between islands in open ocean conditions, with strong currents and chilly temperatures, demands serious open-water experience and a high degree of fitness. That said, for those who are ready for it, this is a bucket-list event unlike anything else in UK swimrun. 

As Keen As Mustard — Grafham Water + The Survivor

As Keen As Mustard is a well-established name in UK swimrun events, running 3 events across England. Their first event is at Grafham Water in Cambridgeshire, one of the largest reservoirs in England and a superb open-water swimming venue.

Their second event is run with Gritty Rascals at Bewl Water in Kent/East Sussex, another stunning reservoir setting with plenty of character.

And their third event — the standout of the three — is back at Grafham Water for an Eliminator-style event called The Survivor. As the name suggests, The Survivor is a knockout-format race where competitors are eliminated at intervals, leaving only the toughest athletes standing at the end.

It's a brilliant concept that adds real drama and tension to the swimrun format. As Keen As Mustard events are well-organised and welcoming, making them a solid choice for both beginners and experienced swimrunners alike.

Wales Swimrun — Two Epic Distances

The Wales Swimrun offers two serious race distances: 18.7km or 29km. This is not a beginner's event — both distances demand a solid base of swimrun fitness and experience in open water.

Set in the wild and beautiful landscapes of Wales, the course takes athletes through a mix of lake swimming, river crossings, and trail running across some genuinely remote terrain.

The 29km option in particular is a full-day adventure that will test your endurance, navigation, and mental resilience. If you've done a few shorter swimruns and you're ready to step up to something truly challenging, the Wales Swimrun should be high on your list. 

Gritty Rascals Events — Gower, Coniston & Bewl Water

Gritty Rascals Events is one of the most active swimrun organisers in the UK, staging 3 races across England and Wales.

The Gower event takes place on the stunning Gower Peninsula in South Wales — the UK's first Area of Outstanding Natural Beauty — where dramatic limestone cliffs meet golden beaches and crystal-clear sea.

The Swimrun Coniston event heads to the Lake District, where the famous Coniston Water provides a stunning backdrop for a classic lake-and-fell swimrun experience.

And their newest addition is the Bewl Water event in Kent, previously run by As Keen As Mustard Events, set on the largest inland water in the South-East of England. Gritty Rascals events are known for their well-marked courses, friendly atmosphere, and excellent organisation. They offer a range of distances across their events, making them accessible to a broad range of athletes. 

Great North Swimrun — Windermere, Lake District

The Lake District is a great location for swimrun, and the Great North Swimrun at Windermere shows you why. Held in June, this race offers 2 distances: 12km and 24km, both set against the breathtaking scenery of England's largest natural lake.

Windermere is iconic — its glassy surface, wooded shores, and surrounding fells make it one of the most photogenic swimrun venues in the world. The 12km course is a great entry point for those stepping up from shorter events, while the 24km is a serious undertaking that demands respect.

The Great North Swimrun has a fantastic reputation for organisation and atmosphere, and the June timing means you can expect (relatively!) decent weather and longer daylight hours. 

Studland Swimrun — Dorset

Dorset's Jurassic Coast is one of England's most dramatic stretches of coastline, and the Studland Swimrun makes brilliant use of it. This event will take place again in 2027 after a break in 2026, with 3 distances: 8km, 11km, and 27km, giving athletes at every level a genuine option.

Studland Bay itself is one of the most beautiful beaches in England — a wide arc of golden sand backed by heathland and nature reserves, with the iconic chalk stacks of Old Harry Rocks standing sentinel at the headland.

The 8km course is ideal for beginners or those new to coastal swimrun, while the 27km is a serious coastal epic that will take you through some of the most spectacular scenery on the South Coast. 

Mana Art Erne Swimrun — Northern Ireland

Swimrun events in the UK aren't limited to England and Wales — Northern Ireland has its own race - the Mana Art Erne Swimrun. Held in August, this event covers 11.5km across the beautiful landscape surrounding Lough Erne in County Fermanagh.

Lough Erne is a vast, island-dotted lake system in the heart of Northern Ireland, and it provides a truly unique swimrun setting — calm, dark water, ancient islands, and a sense of wild remoteness that's hard to find anywhere else.

The 11.5km distance makes this event accessible to a wide range of athletes, including those who are relatively new to swimrun. August is a great time to race in Northern Ireland, with the long summer evenings adding to the atmosphere. 

Jersey Swimrun — Channel Islands

The Channel Islands might be small, but they punch well above their weight when it comes to swimrun. The Jersey Swimrun is one of the most impressive events in the British Isles, offering no less than 4 distances:

• 4km, 
• 20km, 
• 33km, 
• and a monster 53km. 

The island's dramatic granite cliffs, hidden coves, and powerful tidal currents make it a genuinely challenging and spectacular venue. The 4km option is perfect for beginners or those wanting a taste of the Jersey experience without committing to a full-day effort.

The 53km is one of the longest and most demanding swimrun events anywhere in the UK or Europe. The event is well-organised with strong local support. Whatever distance you choose, a swimrun in Jersey is an experience you won't forget.

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