Swimathon 2027 banner, register at swimathon.org.

Welcome to Swimathon!

Friday 16th – Sunday 18th April 2027 at 500+ pools across the UK

Since 1986, Swimathon has united swimmers of all ages, abilities, shapes and sizes in an iconic national celebration of swimming and fundraising, and we’re hugely grateful you’ll be part of it!

From a solo 500m challenge to the Team 5k, there’s something for everyone. Whether you're taking your first strokes or swimming for a personal best, it’s all about having fun and achieving your goals - all while supporting vital causes.

Getting started

Follow these easy steps to get started:

Step 1: Register for your swim

Enter now

Step 2: Claim your page

After registering, you'll get an email to claim and personalise your JustGiving page - just click the link.

Step 3: Spread the word

Share your JustGiving page to spread the word—more shares mean more donations!

Step 4: Start swimming!

Swim and fundraise to receive rewards. Raise £1000 for entry to our prize draw.

💛 Supporting Charities That Matter

Over the last four decades, Swimathon has raised over £50 million for charities. In 2027, we’re proud to support:

Cancer Research UK

Advancing the fight against cancer

Find out more

Marie Curie

Supporting people living with terminal illness

Find out more

Swimathon Foundation

Encouraging people to swim for fitness and wellbeing

Together, we can make waves of change. We encourage all swimmers to share their stories and inspire others to dive in and make a difference.

Photo from behind a swimmer wearing a swim cap, looking out at an indoor pool.

🔗 Find Out More

Visit swimathon.org to learn more about the event, choose your challenge, and get involved.

Enter now