England’s greatest river provides a fantastic backdrop for an unforgettable challenge. Start at Putney Bridge, and the full 100 km route heads upstream to Henley along the famous Towpath. It’s through Richmond, Hampton Court, Runnymede, and Windsor, with some wonderful scenery to a riverside finish line. With three quarter, half, and quarter distance options also available. Plus the separate 25 km Thames Bridges Trek’ and ‘The Moonlight 10 Walk’ through Central London as part of the weekend festival. There’s a Thames Challenge for everyone!

For more information and to register, please visit the Ultra Challenge website here