Chiltern 50 Challenge Our end of season Chiltern Challenge covers some of the best of the Chilterns countryside & is a brilliant way to either end your Ultra Challenge season with a bang, or a great challenge to start your Ultra Challenge journey. Walk, jog or run a 50k, 25k or 10k loop as an individual or a team, with full support and hospitality all the way. With a start & finish at our basecamp in Henley, there’s also a Saturday night celebration BBQ, bar & entertainment, with extensive on-site camping & parking options–there’s a challenge for everyone! Your entry includes a range of free food &drink at regular rest stops, and support from medics, marshals and massage teams. As you cross the finish line, you’ll get a glass of fizz, t-shirt, and a special medal to celebrate your achievement. As we are an ‘Official Charity Partner’-signup & commit to fundraise for us! For full details of the event, and how to join, click 'book' below to head to the Ultra Challenge website-where you can also sign up online-and then look forward to achieving something special in 2023. Book Manage Cookie Preferences