Enjoy a superb scenic half marathon route and help raise money for World Water Day. Starting and finishing in the prestigious Bisham Abbey National Sports Centre, following the Thames between Marlow & Henley before looping back through beautiful countryside.  Fantastic facilities and great spectator-friendly start/finish by the river.  Sponsored by Diageo' s Water of Life programme all donations will go to directly to AMREF UK to fund projects in Africa that improves people's water and sanitation needs.