About the event

If you are a keen swimmer, or fancy trying out a swim for the first time, why not take on the iconic Swim Serpentine in the world-famous Serpentine lake is London's Hyde Park. This is a one day open water swimming festival staged in the heart of London, organised by London Marathon events.

Have you already completed the London Marathon or RideLondon? If so, why not take on the Swim Serpentine and get a step close to getting the much-coveted London Classics medal and being listed in the London Classics Hall of Fame!

The details

Date: September 2024, exact date tbc. 
Location: The Serpentine, London 
Cost: £25
Target: Minimum £250

How we'll support you

  • Free Rethink Mental Illness t-shirt once you hit £75 raised
  • Tips and advice on your swim
  • Support on your fundraising journey
  • Access to resources to support your fundraising

Get involved!

Ready to help those affected by mental illness? Join in with the challenge and register your interest.

Sign up

Don't miss out, register your interest in this iconic swim and help us ensure the no one with mental illness feels alone.

Who are Rethink Mental Illness?

We’re Rethink Mental Illness and we’re on a mission to bring about meaningful change, through our services, groups and groundbreaking campaigns. We know, from our vast experience, that people severely affected by mental illness can have a good quality of life. With your support, we will make that possible.

How will your money support us?

Every penny you raise for us will help empower those severely affected by mental illness. Through our network of support groups, services and helplines, last year we reached: 

You can find out more about our work by visiting our vision and impact page