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Trekking

Chiltern 50 Challenge

This 50 km looped route covers some of the best of the Chilterns countryside. You can walk, jog, or run along historic trails and rolling hills.

The finish line at the Chiltern 50 Challenge.

Event details

Date
27 September 2025

Location
Chiltern Hills

Distance
10, 25 and 50 km distances available

Registration fee
Full 50 km distance is £30 (other options available)

Fundraising target
Full 50 km distance is £375 (other fundraising options available)

About this event

Starting and finishing at our basecamp in Henley-on-Thames, there's a Saturday Night celebration BBQ and entertainment with camping options. Passing through nature reserves, forests, and a few hills with great views - it's a route with real variety, and some wonderful scenery - and it's all easily accessible from London.

As the RSPCA is an official partner of this event, you can sign up to support us and receive a 25% discount on the 'Full Sponsorship' registration fee.

Recommended resources

Fundraising

Training

Event highlights

  • Finisher medal and T-shirt
  • Snacks, drinks and hot food provided
  • Covered rest stops every 12.5 km
  • Fully signed route with medics and marshals

Support from us

We'll be there to help you every step of the way. If you join Team Animal you'll receive:

  • Team Animal trekking T-shirt made from recycled plastic bottles.
  • Dedicated fundraising support from our friendly events team.
  • Fundraising materials to help you reach your target.
  • Helpful training advice for your trek.
  • A Facebook page to chat with your fellow trekkers.
  • A Team Animal Strava group to share your training progress with fellow Team Animal trekkers.

Make an impact

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