North Downs 50 Ultra Challenge

The North Downs 50 Ultra Challenge is a premier endurance event held in the Surrey Hills, starting and finishing at Loseley Park, Guildford. Participants can choose from 50km, 25km, or 10km looped routes that showcase the scenic North Downs Way and surrounding countryside, offering varied terrain and stunning southern views. The event welcomes walkers, joggers, and runners of all experience levels, with full support including covered rest stops every 12.5 km, food and drink catering to all dietary needs, medical and massage teams, and GPS-tracked, well-signed routes.

Optional camping and university-style accommodation are available. Finishers receive a medal, t-shirt, and celebratory meal, making it a rewarding challenge accessible from London. Visit the organization's website for the most recent information.