General entries for 2025 will be available soon
Swim Serpentine will return in 2025 on Saturday 20 September.
Register interest Two-mile swim
About the two-mile swim
The two-mile event is for those who would like to test themselves with two full laps of the Serpentine, and is aimed at more experienced swimmers who have previously completed a one-mile open water swim. The two-mile distance is also one of the three events that makes up the London Classics. Find out more about the challenge here.
Swimmer safety at Swim Serpentine
Your safety is our number-one priority at Swim Serpentine, so our water safety team will be standing by to assist on the day. The Swim Serpentine course will be clearly marked by large buoys, so you’ll find it easy to make your way around your chosen swim distance.
It’s a good idea to complete your chosen distance in full in a pool before the event, and also to practise swimming in open water beforehand, so you have the best possible experience at Swim Serpentine.
The Festival
The free Festival at Swim Serpentine is the ideal place to interact with fellow open water swimming enthusiasts before or after your swim! You can also visit one of our many stands to pick up some essential swimming kit, from goggles to tow-floats.