You must be 12 years or older on Event Day.
You must be 16 years or older on Event Day.
Please click on the dropdown field and begin typing your country of residence.
Please note: the emergency contact number must be different to the swimmer phone number entered above
For the One mile event, swimmers must complete the distance within 1 hour 30 minutes.
For the Two mile event, swimmers must complete the distance within 1 hour 45 minutes.
For the Half mile event, swimmers must complete the distance within 1 hour.
Only those waves that still have space are displayed. Unfortunately we are unable to add you to a wave which has reached capacity.
The Children with Cancer UK Swim Serpentine takes place in Hyde Park, one of the eight amazing Royal Parks in London. The Royal Parks, which offer 5,000 acres of historic green space across the capital, are treasured by Londoners and visitors as beautiful spaces to escape the hustle of the city. The parks offer the chance to relax, unwind or exercise and to enjoy the hundreds of thousands of trees, plants and wildlife, stunning landscapes and many monuments and buildings which offer a fascinating insight into London’s heritage. Attractions in Hyde Park include the Serpentine Lake, Kensington Palace, the Diana Memorial Fountain and the Albert Memorial. The Royal Parks Charity works to care for each of London’s Royal Parks for everyone now and in the future to explore, value and enjoy. Please support the wonderful work of The Royal Parks Charity by making a donation.