Swim Serpentine 2 Mile Swim Plan This plan is ideal if you would like to swim your first 2 mile swim serpentine swim. If you’re a more experienced open water swimmer who is keen to take on a challenge within the beautiful grounds of Hyde Park, the two-mile distance is for you! This event will see you swim two full laps of the Serpentine lake, making it the ideal option if you've already completed a one-mile swim outdoors and are looking to build on your distance. The plan includes: - Three ...