Release your inner dolphin and join Team WWF to take on the two-mile distance at Swim Serpentine on Saturday, 19th September 2026. The popular Swim Serpentine event takes in half a lap of the world-famous lake in London’s Hyde Park. 

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.