The North Downs 50 Ultra Challenge provides a fabulous challenge from a Guildford basecamp, with a looped 50 km route which takes in some of the best of the Surrey hills and the surrounding countryside.
You can take it on at your pace as a walk, jog, or run – and fundraise for Against Breast Cancer’s groundbreaking research into secondary spread breast cancer!
A route with some wonderful scenery & fabulous views out to the south, and easily accessible from London!
Sign up as an individual or as a team; you’ll get full support all the way, plenty of food & drink, optional camping & transfers, a special medal, T-shirt and celebration finish. With 25km & 10km options also available – there’s a summer challenge here for everyone!
Push yourself further in 2026, take on an Ultra Challenge – the UK’s No.1 Series of treks & trail challenges
North Downs 50 Ultra Challenge Cost Options
- Sponsorship / Mixed Funding: Registration Fee + minimum sponsorship
- Own Place: Registration Fee + raise as much sponsorship as possible
You can also raise funds for Against Breast Cancer by taking part in one of the many other Ultra Challenge events that are available.