The Chiltern Challenge - the 1000km circular route will showcase the best of the Chilterns and surrounding countryside. You can walk, jog, or run along 3 iconic trails

Chiltern 50 Challenge

25 September 2021
Ultra Challenge
South East & Central
Moderate - Tough

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! 

Price / Availability

Entry fees and minimum sponsorship vary depending on which distance and funding option you choose. See Sign Up Now - Ultra Challenges  for details.



Moderate - Tough

100km, 50km & 25km distances available.