Join Team WWF at the Kew Half Marathon on Sunday 29th March, 2026. Starting on closed roads inside Royal Botanic Gardens, Kew, before venturing down the Richmond towpath and riverside to Ham House before turning to finish back at Kew Gardens next to the River Thames. Looking for a tune-up race pre London (3 weeks before) or Manchester (2 weeks before) marathon? Kew the Run offers a flat and fast course.