Open Water Swimathon

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Start your open water journey with Open Water Swimathon 2019 and join Cancer Research UK and Marie Curie to raise as much money as possible for two causes close to the nation’s hearts. 

Open Water Swimathon will take place from Saturday 7 - Sunday 8 September. We have a range of distances available (from 500m up to 5k), which makes it the perfect challenge for both experienced open water swimmers, and those transferring from the pool to the open water for the first time!

Choose to take part in an organised session at one of our registered venues or take part at a time and place which works for you with MySwimathon.



Marie Curie doctor Nikki's open water swimming journey

Growing up, Nikki – a Consultant in Palliative Medicine at the Marie Curie Hospice, West Midlands – swam regularly at her local swimming club. After falling out of the habit at university, she started swimming regularly again in her 30s. In 2017, after a few years back in the pool, Nikki wanted to set herself a challenge and decided to sign up for her first open water swim - 1,500 metres, which she loved. Having discovered a new passion, she hasn’t looked back since.

Meet our Open Water Swimathon Ambassadors

Meet our first ever Open Water Swimathon Ambassadors and find out why they wanted to get involved in this year’s event! We’ll be following their swimming and fundraising journey right up until event day and beyond.

Duncan Goodhew Supports School Swimathon 2019

​Swimathon president and Olympic god medallist, Duncan Goodhew went to visit Jessie Younghusband school in Chichester a few weeks ago to thank them for being such incredible supporters of School Swimathon 2019. Here, Duncan led a fun swimming session followed by an inspirational assembly and a Q&A session.

Open Water Swimathon Summer Competition announced

Here at Open Water Swimathon, we are super excited to announce the launch of our Open Water Swimathon Summer Competition! This incredible opportunity will give all our swimmers the chance to win some amazing prizes courtesy of our partners.

Start Your Open Water Journey with Open Water Swimathon 2019

Open Water Swimathon is back for a third year in 2019 and will be taking place on Saturday 7 – Sunday 8 September at a number of venues across the UK. Start your open water journey today with Open Water Swimathon 2019!