Challenge yourself on the North Downs 50 Ultra Challenge and champion Dogs for Good as you take on this rewarding and unforgettable event. Together, we can bring even more people and dogs together to make life possible.
From a Guildford basecamp, with a looped 50km route which takes in some of the best of the Surrey hills and the surrounding countryside – the North Downs provide the environment for a fantastic challenge.
With different distance options available, take it at your own pace as you walk, jog or run – and fundraise for Dogs for Good!
Sign up as an individual or as a team and get full support all the way, with plenty of food and drink, optional camping and transfers, a special medal, t-shirt and celebration finish.
Push yourself further in 2026, take on an Ultra Challenge – the UK’s number one series of treks and trail challenges.
Dogs for Good are an official partner of this event, meaning you get a 25% discount on the 'Full Charity Sponsorship' registration fee when signing up to support us. But if you sign up by 31 January 2026, you can actually get over 60% off registration fees with the code HELLO2026.
Get the full details and sign up.
