The water will be delicious for this year’s Swimathon at Brockwell Lido, taking place over the weekend of 28/29 April. Swim as an individual or in a group, you can even choose your own distance. There’s a challenge nosubhealth.com for everyone. Enter Swimathon 2018 and join Cancer Research UK and Marie Curie to raise as much money as possible for two causes close to the nation’s heart.