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Charity swims in September 2025

Find charity swims in September 2025 - filter by date or location, display on a map or use the advanced search to find your perfect race.

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Select an event for photos, video, route, location, reviews, entry fees and how to enter.

Take on a challenge like no other as you swim a marathon distance over 12 weeks and lift your health, wellbeing and fitness to the next level.
  • Sat 13 Sep
  • FREE
Anywhere

Swim Marathon | 26 miles

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

  • Enter online
  • Fundraising required
  • All ages
  • 26 miles pool swimming
Take on a challenge like no other as you swim a half marathon distance over 12 weeks and lift your health, wellbeing and fitness to the next level.
  • Sat 13 Sep
  • FREE
Anywhere

Swim Marathon | 13 miles

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

  • Enter online
  • Fundraising required
  • All ages
  • 13 miles pool swimming
Half a lap of the Serpentine Lake at your chosen pace, as part of the one-day open water swimming festival in the beautiful Hyde Park.
  • Sat 20 Sep
London, UK

Swim Serpentine Half Mile

Secure your charity place in the Half Mile distance today. Swim for charity in the beautiful Serpentine Lake and support top UK charities. Find a cause and join their team today!

  • Enter online
  • Age 12 & over
  • 0.5 mile lake swimming
A classic distance in the world of open-water swimming events, the one-mile swim covers one full lap (1.6K) of the lake, as part of the one-day open water swimming festival in the beautiful Hyde Park.
  • Sat 20 Sep
London, UK

Swim Serpentine One Mile

Secure your charity place in the One Mile distance today. Swim for charity in the beautiful Serpentine Lake and support top UK charities. Find a cause and join their team today!

  • Age 16 & over
  • 1 mile lake swimming
The two-mile event is for those who would like to test themselves with two full laps of the Serpentine, aimed at more experienced swimmers, also forming part of the London Classics.
  • Sat 20 Sep
London, UK

Swim Serpentine Two Mile

Secure your charity place in the Two Mile distance today. Swim for charity in the beautiful Serpentine Lake and support top UK charities. Find a cause and join their team today!

  • Age 16 & over
  • 2 miles lake swimming
  • Sat 20 Sep
London, UK

Swim Serpentine Six Mile

  • 6 miles lake swimming

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