The North Downs 50 Ultra Challenge offers an unforgettable endurance experience, starting and finishing at the vibrant Guildford basecamp. From here, participants set out on a spectacular 50 km looped route that showcases some of the finest scenery the Surrey Hills Area of Outstanding Natural Beauty has to offer. The trail leads you through rolling woodland, open meadows, peaceful villages, and iconic sections of the North Downs Way, creating a route that is both diverse and deeply rewarding.
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 for the North Down 50 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
For more information and to sign up click hereYou can also raise funds for Against Breast Cancer by taking part in one of the many other Ultra Challenge events that are available.