
Date
16 - 18 April 2027
Location
UK wide
Distance
Any
Swimathon is the world's largest annual fundraising swimming event, taking place all across the UK. With a range of distances and free entry options, this really is a swim for all! Join us and play your part in raising vital funds for Cancer Research UK and Marie Curie.
Swimathon 16-18 April: Take on a Swimathon challenge as an individual with distances from 500m to 5k. Or if you want to challenge yourself a little further, take on the Triple 5k! Alternatively, swim as part of a team of 2-5 swimmers and take on a 1.5k, 2.5k or 5k challenge. Swimathon entries have yet to launch for 2027, so please register your interest to be the first to hear about the event.
Decide on your event or pick MySwimathon
Sign up for your event through the Swimathon website
We'll provide support, resources and ideas to help you reach your goal.

Complete your challenge and smash your fundraising target!

Swimathon is held in over 450 pools across the UK. Visit the venues page to check out where these pools are and to find your closest one. Venues have yet to be confirmed for 2027 but will be updated soon.

12,500 swimmers all fundraising for Cancer Research UK, Marie Curie and The Swimathon Foundation

Hitting their fundraising targets to raise an overall total of around £250,000 for Cancer Research UK

Could fund the PETReA trial for more than 1 year helping doctors decide how to treat lymphoma

We've teamed up with experts to give you the best training support and advice for your event. Whether it's your first time training or you're looking to smash a PB, we've got a training plan for you.

We're with you every step of your fundraising journey so you can smash your target. Once you've signed up, we'll send you everything you need to get going such as fundraising ideas, top tips, planners and posters.
Sunday 4 April 2027
Sunday 16 May 2027
Sunday 11 July 2027