Fabulous challenge in some of the Chilterns finest countryside.
With historic trails, rolling hills, nature reserves, and fantastic views, this is one not to miss.
At the basecamp in Henley, there’s a Saturday night celebration BBQ, bar and entertainment, with extensive on-site camping and parking options. A route with real variety and some wonderful scenery – and easily accessible from London.
With 50km, 25km, and 10km challenge options available, there's a challenge for everyone. You can join as an individual or as a team.
Event details
27 Sept 2025
Chiltern
Fundraising pledge: £70 - £375
Registration fee: £20 - £139
Fundraising options
Charity sponsorship
- Pay a small registration fee, do lots of fundraising and we cover the cost of your event place. As we are an official charity partner of the event you will get 50% off the registration fee.
- Registration fee: £20 - £40, depending on your chosen distance.
- Fundraising target: £100 - £375, depending on your chosen distance.
Mixed funding
- Pay half of the event place cost yourself, fundraise a bit less and we will pay the balance of your event place cost.
- Registration fee: £22.50 - £75, depending on your chosen distance.
- Fundraising target: £70 - £225, depending on your chosen distance.
Own place fundraising
- Pay the full cost of the event place, fundraise whatever you can, with no set target or deadline.
- Registration fee: £39 - £139, depending on your chosen distance.
- Fundraising target: Raise as much as you can
Visit the Ultra Challenge website for full details on distances, prices, and to sign up.
Why we need you
Great Ormond Street Hospital Charity (GOSH Charity) needs your support more than ever. By fundraising, you'll help to fund:
- groundbreaking research
- advanced equipment
- children and family support services
- the rebuilding and refurbishment of wards and medical facilities within the hospital
Why trek for GOSH Charity at the London 2 Brighton Challenge?
As part of TeamGOSH, you'll receive:
A GOSH Charity t-shirt
Dedicated support from GOSH Charity's Challenge Events team
Inclusive and fun event with a great atmosphere and camaraderie
A fully signed route, with a team of ‘Trekmasters’ out on the trail with you
Regular covered rest stops, with free food and drink and medics
An epic finish line moment, with a glass of fizz, medal and t-shirt
Ready to trek for GOSH Charity?
Lace up those walking boots and trek for seriously ill children at Great Ormond Street Hospital.