Take on England’s greatest river with a ‘flat’ 100 km route heading out from Putney Bridge, past Hampton Court to Runnymede at the 50 km half way. For the full challenge it’s on to Windsor and then past wonderful historic scenery and countryside to Henley-on-Thames. There are half and quarter distance options also, and the Henley 10 km walk – the most popular event of the season!

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