Lake swims in the UK
Combine exercise with adventure in these lake swimming events! Take the opportunity to explore incredible locations like the Lake District and Scottish lochs, creating unforgettable memories alongside your fellow swimmers. Sign up to an event right here!
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Lake swimming events in 2025
Featured events are listed below - select a month/region or the map view to see all events.
- Fri 16 - Sun 18 May
- £30
Keswick Mountain Festival
The UK's top outdoor sports festival! Incredible entertainment, sports events, speakers, live music, activities, brand expo, bars, food, drink and much more.
- 5K run 2
- 10K run
- Half marathon
- 50K ultra run
- Fell run
- + 12 more races
- Sat 17 May
- £29-£55
Roadford Lake Swim
Take the opportunity to swim in a superb lake swimming venue where you’re not normally allowed to swim! Come and make a weekend of it with lakeside camping too.
- Lake swim 5
- Sat 24 - Sun 25 May
- £35-£245
Lough Cutra Castle Triathlon and Multisport Festival
Get active in the beautiful grounds and surrounding area of stunning South Galway in the discipline of your choice! Recruit your friends and celebrate your challenge in the festival village.
- Sprint triathlon 3
- Super sprint triathlon
- Novice triathlon
- Olympic triathlon
- Half Ironman
- + 17 more races
- Sat 7 - Sun 8 Jun
- £35-£375
Chateau de Chantilly Triathlon and Multisport Festival
The majestic château hosts this epic multi-sport weekend for athletes of all levels, complete with a range of disciplines, festival village, friendly spectators and top reviews all-round!
- Ironman
- Half Ironman
- Olympic triathlon
- Sprint triathlon 2
- Super sprint triathlon
- + 11 more races
- Fri 13 - Sun 15 Jun
- £19-£98
Great North Swim
The UK's biggest open water swimming event providing a fantastic opportunity for families, individuals, experienced and beginner swimmers to enjoy the open water.
- Lake swim 6
- Sat 21 - Sun 22 Jun
- £35-£295
Cholmondeley Castle Triathlon and Multisport Festival
Get active in the beautiful grounds and surrounding area of stunning Cheshire in the discipline of your choice! Bring your friends and celebrate completing your challenge in the festival village.
- Relay triathlon 2
- Kids triathlon 5
- Novice triathlon
- Super sprint triathlon
- Sprint triathlon 2
- + 16 more races
- Sat 12 - Sun 13 Jul
- £20-£95
Ripon Triathlon Festival
A family-friendly event in partnership with the Brownlee Foundation, for triathletes of all skill levels including a Sprint, Standard, Middle distance tri, Swims, Aquabike, Relay and Juniors.
- Lake swim 4
- Sprint triathlon
- Sprint aquabike
- Standard aquabike
- Olympic triathlon
- + 5 more races
- Sat 19 - Sun 20 Jul
- £35-£295
Belvoir Castle Triathlon and Multisport Festival
A jewel in the castle crown! Get active in the beautiful grounds and surrounding area of stunning Leicestershire in the discipline of your choice! Celebrate in the festival village afterwards.
- Kids triathlon 4
- Super sprint triathlon
- Sprint triathlon 2
- Olympic triathlon
- Half Ironman
- + 14 more races
- Sat 2 - Sun 3 Aug
- £31.99-£249.99
Craft Snowman Triathlon & Duathlon, Snowman Swim & Ogwen Yr Helgi Du Trail Runs
Awarded the Event of the Year (2021) in the Welsh Triathlon Awards, The Craft Snowman is well known as the toughest multi-terrain triathlon and duathlon in the UK. Plus swims and trail running events.
- Sprint triathlon
- Olympic triathlon
- Half Ironman
- Sprint duathlon
- 10K run
- + 5 more races
- Sun 21 Sep
- £30-£97
Eton Dorney Triathlon & Swims
The Olympic venue, Eton Dorney, offers pan-flat, traffic-free roads and a beautiful clear lake for all levels of triathletes and swimmers to enjoy in an exclusive setting.
- Super sprint triathlon
- Sprint triathlon
- Olympic triathlon
- Lake swim 4
- Sat 27 - Sun 28 Sep
- £35-£295
Hever Castle Triathlon and Multisport Festival
Get active in the award-winning grounds and surrounding Kent countryside in the discipline of your choice! Recruit your friends and celebrate completing your challenge in the festival village.
- Half Ironman
- Olympic triathlon
- Sprint triathlon 2
- Super sprint triathlon
- Novice triathlon
- + 17 more races
- Fri 29 - Sun 31 Aug
- £10-£279
Long Course Weekend Yorkshire
The Long Course Weekend Yorkshire is back for a second year! A huge multi-sport festival in stunning Nidderdale featuring runs, rides, triple-style challenges and junior events too.
- Ironman
- Half Ironman
- Kids triathlon
- Lake swim 2
- Long sportive
- + 6 more races
Lake swims near you
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