Make a splash this spring and celebrate 40 years of Swimathon by taking part in the world’s biggest annual pool-based fundraising swim. From 20 to 22 March 2026 over 450 pools across the UK will host the challenge.

Sign up as an individual, or form a team, and take on a distance that suits you. By taking part you’ll raise vital funds for the world’s largest charitable funder of cancer research, Cancer Research UK, and the UK’s leading end of life charity, Marie Curie, as well as Swimathon Foundation

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Our Charity Partners

Cancer Research UK is the largest charitable funder of cancer research in the world and will stay at the forefront of the global fight against cancer. 1 in 2 of us will get cancer. All of us can support the research that will beat it.

Marie Curie is here for people with any terminal illness, and those close to them – from diagnosis to bereavement. Our nurses and healthcare assistants support families directly across the UK. Our free support line can help with any question about end of life. And we campaign for structural change and fund vital research that improves end of life for everyone.

BE A PART OF THE WORLD’S BIGGEST FUNDRAISING SWIM

Taking place in more than 450 pools across the country every spring, it offers swimmers of all abilities the chance to challenge themselves, as well as their friends and family, to a distance that suits them whilst fundraising for charities Cancer Research UK, Marie Curie and Swimathon Foundation.

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It's #GivingTuesday a day that encourages us all to do good! 💫

With @GivenGain, all fundraisers who receive at least 1 donation on their fundraising page today (3rd Dec 2024), will automatically go into the draw to win a pair of waterproof headphon

#MySwimathon is a virtual challenge that gives you the flexibility to swim any distance, at any venue.

Perfect if you can’t make #Swimathon2025 weekend or prefer to swim independently. Take part between Friday 21 March – Sunday 6 April 2

Grab your goggles let's get swimming! 🏊🏿&zwj;♂️🏊🏽&zwj;♂️🏊

#Swimathon2025 is a fantastic opportunity to support our two charity partners, @MarieCurieUK and @cr_uk whilst challenging yourself to swim further than you have before.

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😀 Create your fundraising page on @givengainfoundation and raise or self-donate £10 before 1st December 2024 for your chance to win a £100 donation to your page!

Support our incredible charities @MarieCurieUK and @cr_uk and get off to a

Registration for #Swimathon2025 is open! 🏊🏽&zwj;♂️

Hosted at over 450 pools across the UK from 28th - 30th March 2025, there are individual and team challenges to suit you!

Enter now via the link in our bio.

Swimathon is open to all ages and abilities. It doesn’t matter if you can swim 1 length or 1000, Swimathon has the challenge for you!

Have you signed up yet? Click the link in our bio.

(Under 16s must be entered and accompanied by an adult.)

DID YOU KNOW?

A YouGov poll commissioned by Swim England discovered that 1.4 million adults in Britain significantly reduced the symptoms of anxiety or depression through Swimming.

Dip your toe in and see how swimming can bring a smile to YOUR fac

It's time! Registration for #Swimathon2025 is now OPEN. 🏊🏾&zwj;♂️🏊🏻&zwj;♂️🏊🏿&zwj;♂️

Challenges range from 400m to triple 5k and can be completed on event weekend - 28/29/30 March, or virtually between 21st March and 6th April.

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OUR PARTNERS

CHARITY BENEFICIARY

CHARITY BENEFICIARY

CHARITY BENEFICIARY

EVENT PARTNER

EVENT PARTNER

EVENT PARTNER

FUNDRAISING PLATFORM PARTNER