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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 world’s leading cancer charity, dedicated to saving and improving lives through research, influence and information. In the last 50 years, the charity’s pioneering work has helped double cancer survival in the UK. And today it’s continuing to save lives, here and around the world. Cancer Research UK’s vision is a world where everybody lives longer, better lives, free from the fear of cancer. And step by step, day by day, researchers are making this vision a reality thanks to a dedicated community of supporters, partners, donors, fundraisers, volunteers and staff.

Marie Curie is the UK's leading end of life charity. The charity provides expert end of life care for people with any illness they are likely to die from, and support for their family and friends, in our hospices and where they live. It is the largest charity funder of palliative and end of life care research in the UK, and campaigns to ensure everyone has a good end of life experience. Whatever the illness, we're with you to the end.

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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OUR PARTNERS

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