Lake swims in September 2025
Find lake 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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- Sat 20 Sep
- FREE
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
- Sat 20 Sep
- FREE
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
- Sat 20 Sep
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
- Sat 20 Sep
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
- Sat 20 Sep
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
- Sun 21 Sep
- £52
Swim Long Eton Dorney | 10K
Distance swimmers can enjoy the beautiful clear lake of Eton Dorney, the Olympic venue, and experience the venue and facilities of Olympians.
- Chip timing
- Enter online
- PB
- Age 16 & over
- 10 km lake swimming
- Sun 21 Sep
- £42
Swim Long Eton Dorney | 5K
Distance swimmers can enjoy the beautiful clear lake of Eton Dorney, the Olympic venue, and experience the venue and facilities of Olympians.
- Chip timing
- Enter online
- PB
- Age 16 & over
- 5 km lake swimming
- Sun 21 Sep
- £30
Swim Long Eton Dorney | 2.5K
Distance swimmers can enjoy the beautiful clear lake of Eton Dorney, the Olympic venue, and experience the venue and facilities of Olympians.
- Chip timing
- Enter online
- PB
- Traffic free
- Age 16 & over
- 2.5 km lake swimming
- Sun 21 Sep
- £35
Swim Long Eton Dorney | 3.8K
Distance swimmers can enjoy the beautiful, clear lake of Eton Dorney, the Olympic venue, and experience the venue and facilities of Olympians.
- Chip timing
- Enter online
- PB
- Age 16 & over
- 3.8 km lake swimming
- Sat 27 Sep
- £65
Hever Castle | 5K Swim
Get active in the award-winning castle grounds in a 5K lake swim! Recruit your friends and celebrate completing your challenge in the festival village with like-minded people.
- Chip timing
- Enter online
- Age 18 & over
- 5 km lake swimming
- Sat 27 Sep
- £55
Hever Castle | 2.5K Swim
Get active in the award-winning castle grounds in a 2.5K lake swim! Recruit your friends and celebrate completing your challenge in the festival village with like-minded people.
- Chip timing
- Enter online
- Age 16 & over
- 2.5 km lake swimming
- Sat 27 Sep
- £45
Hever Castle | 1 Mile Swim
Get active in the award-winning castle grounds in a 1-ile lake swim! Recruit your friends and celebrate completing your challenge in the festival village with like-minded people.
- Chip timing
- Enter online
- Age 13 & over
- 1 mile lake swimming
- Wed 17 Sep
Capernwray Open Water Swimming Championships | 500M
- 500 m lake swimming
- Wed 17 Sep
Capernwray Open Water Swimming Championships | 1000M
- 1000 m lake swimming
- Wed 17 Sep
Capernwray Open Water Swimming Championships | 1500M
- 1500 m lake swimming
- Wed 17 Sep
Capernwray Open Water Swimming Championships | 3x500M Relay
- 500 m lake swimming