Three Forts Challenge
Worthing, United Kingdom • 3 May 2026
Three Forts Challenge is a trail-running event based at Lancing Manor Leisure Centre in West Sussex. It offers three races: a Full Marathon (27.2 miles) starting and finishing at Lancing Manor, with steep climbs, stiles and rough tracks, passing Chanctonbury Ring and Cissbury Ring for panoramic countryside views; a Half Marathon through the South Downs with similar terrain and a climb toward Chanctonbury Ring; and a 5 Mile Trail Run over rolling hills and grassy trails. All profits go to Ferring Country Centre and other local charities. Dogs are welcome with prizes for canine runners, and Canicross rules apply. Visit the organization's website for the most recent information.