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Swimathon 2026

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Date

20 - 22 March 2026

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Location

UK wide

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Distance

Any

Take on Swimathon 2026

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.

Select your Swimathon Challenge

Swimathon 20-22 March: 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. Pick your distance, pick your date, pick your venue and start raising money for life-saving research today!

Select your My Swimathon Challenge

MySwimathon 1 - 31 March If you're not available to take part at an official Swimathon event between 20 - 22 March, choose MySwimathon! MySwimathon gives you the flexibility to take on your challenge any time between 1 and 31 March at a location that suits you.

How to join Team Cancer Research UK

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Step 1

Decide on your event or pick MySwimathon

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Step 2

Sign up for your event through the Swimathon website

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Get fundraising for life-saving research

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Step 4

Complete your challenge and smash your fundraising target!

Where is Swimathon held?

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Find your local Swimathon venue

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.

The difference your money makes

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

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

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

Get training and fundraising support

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Get training support

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.

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Get fundraising support

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.

Find the right event for you

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Sunday 24 May 2026

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Sunday 13 September 2026

London to Brighton Cycle Ride