19 September 2026
Swim Serpentine is a one-day open water swimming festival staged in the heart of London.
Sign up today to take part in this iconic fresh water swimming challenge! There are no currents to worry about as you’ll be swimming around the Serpentine lake in Hyde Park.
Half Mile Charity Place
Registration Fee: £20
Fundraising Target: £150
One Mile Charity Place - sold out
Registration Fee: £25
Fundraising Target: £225
Two Mile Charity Place
Registration Fee: £30
Fundraising Target: £300
Are you up for the challenge?
Swimming is a low impact sport, as it is non weight bearing. This is good news, as you are less likely to pick up an injury compared to other sports. However, you should not enter your first open water event without having swum outdoors previously. Start off gradually and build up the distance.
Already have a place?
If you have already successfully registered yourself for this event through the event organisers and would still like to raise funds for Imperial Health Charity, sign up using the link below. You will receive the same support that our chairty places swimmers will receive. See below for more indormation and the the sign up link.
The London Classics Medal
Have you already run the London Marathon, and cycled the Ride London 100? Completing the Swim Serpentine 2023 will allow you to claim a London Classic's Medal. Join the elite club of people who have run, cycled and swum the capital’s most famous mass participation events. The three events can be completed in any order, and in any time period. Once you have your medal, you’ll also be listed in the London Classics Hall of Fame.
Joining our team
If you would like to take on the challenge, our fundraising team will be delighted to assist you in your fundraising in the lead up to this event.
You will receive:
- A comprehensive fundraising pack filled with hints and tips of how to get started in your fundraising
- Bespoke materials such as posters and leaflets created to boost your fundraising
- 1 on 1 support all the way up to the day of your event
