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The Thames Marathon is an endurance swim between Henley-on-Thames and Marlow with a choice of 2 distances.This swim covers one of the most stunning stretches of the River Thames and has become one of open water swimming’s most prestigious marathon swims.
The Thames Marathon swim is approximately 13km and is split into 4 sections. Swimmers will be required to exit the water at the 3 locks (Hambleden, Hurley and Temple).
The Thames Half Marathon swim is approximately 5.5km and is split into 3 sections. Swimmers will be required to exit the water at 2 locks.
Drinks and energy snacks will be available for all swimmers at the locks, home to our famous feed stations!
The event has again received a Gold Racecheck Award in 2023, with a score of 4.9/5 and consistently high review from swimmers.
It is the perfect event for a personal or charity challenge. We're teaming up with Macmillan cancer support once again this year.
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Come swim the Marathon with us in 2024!
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Event Venue & Nearby Stays
Henley-on-Thames, United Kingdom
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