London Marathon in partnership with British Swimming and the ASA are putting on a mass participation open water swim and the British Open water championships. It will be held in the Serpentine on 24th (participation) and 25th (Championships) September 2016. It is expected there will be 4,000 participants on the Saturday and the Sunday will have all age groups, Masters and an Elite event. For more information please click here, or visit the website: https://www.swimserpentine.co.uk/
