Swimathon logo celebrating 40th anniversary from 1986 to 2026, with a swimmer in a pool, and logos for Cancer Research UK and Marie Curie.

Swimathon 2027

Swimathon returns 16th - 18th April 2027

To be the first to hear when we launch and claim a discount, register your interest now.

Challenges range from 500m to Swimathon 5k and Triple 5k. Individuals and Teams can take part.

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.

Our Charity Partners

Two women smiling, wearing medals around their necks, holding a Cancer Research UK sign, and appearing to have just finished a race at an outdoor event.
A smiling man is holding a silver medal after a swimming event, with a person beside him wearing a blue shirt that says 'Swimathlon.' Both are outdoors, with trees and a swimming pool in the background. The man with the medal is shirtless and appears to be tired but happy. The image features a Marie Curie logo in the foreground.

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.

A smiling young woman in a black swimsuit holding a silver medal at an indoor swimming pool.

OUR PARTNERS

CHARITY BENEFICIARY

 
 

CHARITY BENEFICIARY

 
 

CHARITY BENEFICIARY

 
 

EVENT PARTNER

EVENT PARTNER

EVENT PARTNER

FUNDRAISING PLATFORM PARTNER