Lake swimming events

Lake swimming events

Explore wild swimming events in the lakes and lochs of the UK!

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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 2025/2026

Featured events are listed below - select a month/region or the map view to see all events.

Swim Long Eton Dorney
Olympic venue

Swim Long Eton Dorney

Feel like an Olympian this September as you race in the crystal clear Dorney Lake from 2.5K to 10K.

Take a look
Take on a challenge like no other as you swim a marathon or half marathon distance over 12 weeks and lift your health, wellbeing and fitness to the next level.
  • Sat 20 Sep - Fri 24 Oct
  • FREE
Anywhere

Swim Marathon

Take on a challenge like no other as you swim a marathon or half marathon distance over 12 weeks and lift your health, wellbeing and fitness to the next level.

  • Charity swim 2
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.
  • Sun 21 Sep
  • £30-£97
Windsor, Buckinghamshire, UK

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
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.
  • Sat 27 - Sun 28 Sep
  • £35-£295
Edenbridge, Kent, UK

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
The UK's top outdoor sports festival! Incredible entertainment, sports events, speakers, live music, activities, brand expo, bars, food, drink and much more.
  • Fri 15 - Sun 17 May 2026
  • £30
Keswick, Cumbria, UK

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
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.
  • Sat 16 May 2026
  • £29-£55
Lifton, Devon, UK

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
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.
  • Sat 23 - Sun 24 May 2026
  • £28-£245
  • 20% off
Gort, Ireland

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.

20% off

  • Sprint triathlon 3
  • Super sprint triathlon
  • Novice triathlon
  • Olympic triathlon
  • Half Ironman
  • + 17 more races
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!
  • Sat 6 - Sun 7 Jun 2026
  • £15-£350
  • 20% off
Chantilly, France

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!

20% off

  • Ironman
  • Half Ironman
  • Olympic triathlon
  • Sprint triathlon 2
  • Super sprint triathlon
  • + 12 more races
The UK's biggest open water swimming event providing a fantastic opportunity for families, individuals, experienced and beginner swimmers to enjoy the open water.
  • Fri 12 - Sun 14 Jun 2026
  • £16-£105
Windermere, Cumbria, UK

Arla 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
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.
  • Sat 20 - Sun 21 Jun 2026
  • £28-£245
  • 20% off
Malpas, Cheshire, UK

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.

20% off

  • Kids triathlon 5
  • Novice triathlon
  • Super sprint triathlon
  • Sprint triathlon 2
  • Olympic triathlon
  • + 14 more races
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.
  • Sat 18 - Sun 19 Jul 2026
  • £28-£245
  • 20% off
Grantham, Leicestershire, UK

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.

20% off

  • Kids triathlon 4
  • Super sprint triathlon
  • Sprint triathlon 2
  • Olympic triathlon
  • Half Ironman
  • + 14 more races

Lake swims near you

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4 steps to wellbeing
Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.