Swim Serpentine 2025 - The Lily Foundation
The Lily Foundation logo featuring a butterfly, hearts and an 'x' for a kiss

Fighting mito,
finding hope.

Four Lily Fundraisers, laughing, covered in mud at a Tough Mudder event Four Lily Fundraisers, laughing, covered in mud at a Tough Mudder event

Swim Serpentine 2025

Woman holding a medal having completed Swim Serpentine for The Lily Foundation

Swimming

Date: 20 Sep 2025

Fundraising pledge: £300

Join Team Lily for the Swim Serpentine open water swimming event in Hyde Park. We have guaranteed places for the 2-mile swim at this, the largest open water mass participation event in the UK. Aimed at the more experienced swimmer, you’re required to complete two full (1.6km) laps of the Serpentine (it’s recommended that you have previous experience of open water swimming).

This 2-mile event qualifies for the Swim Serpentine element of the London Classics Challenge (participants are required to run the London Marathon, cycle the RideLondon 100 and swim 2 miles at Swim Serpentine). 

In the park there will be a Health & Wellbeing festival to entertain friends and family who are there supporting you. Join us and go back to nature in the heart of the city!

A big thank you for your support

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