Join Team Ollie and discover ten of London’s often hidden peaks on this new marathon distance walking challenge.

See a different side to London and journey through 42km of beautiful woodland, nature reserves and quieter spaces. With unexpected views and chance encounters with local wildlife, this is a distance challenge on your doorstep.

This event is organised by Charity Challenge and is a fundraising event. Full details including how to register can be found via their website here.

When you’ve signed up and chosen OYF as your charity you’ll receive your choice of official OYF t-shirt/vest.

We’d welcome any photos that you chare with OYF for social media and our website (you agree that any photos sent to us can be used on our website and social media pages for advertising purposes).