Thames Marathon Swim
The Thames Marathon, now in its 9th year, is a 14km long-distance challenge swim from Henley-on-Thames to Marlow. It covers a beautiful stretch of the Thames and has become one of open water swimming's most prestigious marathon swims. The swim is split into 4 sections. Swimmers will be required to exit the water at the 3 locks - Hambledon at 4k, Hurley at 10k and Temple at 11.8k - where food and drink will be available.
2019 Registration is open