Two cheerful women hikers in colorful clothing celebrate on a forest trail, raising trekking poles amid sunlit trees and fallen logs.

North Downs 50 Ultra Challenge

The North Downs provides a fabulous backdrop to an incredible challenge with 50km, 25km, and 10km options to push yourself further.

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Walk, jog, or run across the best trails in Surrey all whilst fundraising for Farleigh Hospice and making a real difference.

Head out from basecamp in Guildford along the North Downs Way and up to a spectacular view at St.Martha’s Church. Full 50km challengers then head back towards basecamp through idyllic villages and the scenic Blackheath Common. This Challenge is easily accessible from London with excellent transport connections – the perfect Ultra Challenge for all!

Join as an individual or as a team and get ready to experience full support every step of the way. Regular rest stops packed with food and drink, hot meals, fully marked routes, massage and medicalcare, marshals on course and walking the route with you, and of course an unbeatable community.There’s a range of camping options and transfers available for all challengers so you can plan your whole weekend smoothly.

Join the UK’s #1 Series of treks and trail runs in 2027, and push yourself further with the North Downs 50 Ultra Challenge.

Early bird offer – 50% off any registration fee until 31 August

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See all our challenges

Are you a walker, runner, trekker, cyclist, or just a thrill seeker? Whatever your interest, level of fitness or free time – here at Farleigh we've got a challenge to suit you.