This fantastic route will showcase the best of the Chilterns and surrounding areas. You'll walk, jog, or run along three of the South's most iconic trails the Ridgeway, Icknield Way and Chiltern Way starting and finishing in Henley-on-Thames. You will venture through nature reserves, under forests, along ancient footpaths and of course up some of the Chiltern's famed hills - it is a route with a huge amount if variety and varied landscapes which will amaze you. 

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The Full Challenge at 100km with over 1,800 metres climb - makes it a tough one! The full 100km route is a loop starting and finishing in Henley via Princes Risborough with a half way base camp, where you can stay over night and take the challenge over 2 days, whilst others push on through the night. The 1st Quarter Challenge is ideal for novice challengers, and if you push on for the 1st Half - it's an Ultra Marathon distance - all the way back to Princes Risborough.