Take on 25 km or 50 km – walk, jog, or run. This end of season 50 km looped route covers some of the best of the Chilterns countryside, with historic trails, rolling hills, nature reserves, and fantastic views. 

Starting and finishing at our base-camp in Henley, there’s a Saturday night celebration BBQ and entertainment with extensive on-site camping and parking options. It’s a route with real variety and some wonderful scenery – and it’s all easily accessible from London. You’ll get full support and hospitality all the way, and with a 25 km option also – there’s a Chiltern Challenge for everyone!

How to Take Part  

For more information and to sign up please visit Chiltern 50 - Ultra Challenges

There are multiple joining options.

1. Charity Sponsorship – you pay a small registration fee, do lots of fundraising and we cover the cost of your event place!  

2. Mixed Funding – pay half of the event place cost yourself, fundraise a bit less and we pay the balance of the event place cost.  

3. Self Fund –  you pay the full cost of the event place - fundraise whatever you want,  with no set target or deadline, and there’s no cost at all to the charity!