event

Swim Serpentine

Swim Serpentine is a one-day open water swimming event held in and around the beautiful Serpentine in Hyde Park. It provides the rare opportunity to swim in the Serpentine lake, the same venue as the London 2012 Marathon Swimming Olympic event!

First held in 2016, Swim Serpentine held its seventh edition in 2024. Entries for the 2025 edition on 20th September will be available soon.

Brought to you by the team behind the TCS London Marathon and Ford RideLondon-Essex, the event has become a staple of London’s late summer calendar offering half-mile, one-mile and two-mile distances to cater for a range of ages and abilities.

This year will also see the return of the women’s-only one-mile wave and the Super Six, an impressive six-mile swim which must be done as one continuous swim, although participants will be able to rest at a pontoon should they need to.

The two-mile swim also forms part of the London Classics – a fabled sporting challenge comprising the three toughest London endurance events including the London Marathon, RideLondon 100 and Swim Serpentine. More than 1,000 swimmers are expected to complete the London Classics at this year’s Swim Serpentine.

You can register your interest for the event now through the Swim Serpentine website.

Once your place is sorted, let us know below if you’re taking part for Roundabout and we’ll be able to support you with all your fundraising!

Register your Fundraising

If you need any support from our Fundraising Team or have any questions, please get in touch! 
You can email us at fundraising@roundaboutltd.org.