The Three Forts Half Marathon (13.1 miles)is a tough half with stiles and rough tracks and assents of the Iron Age Forts of Cissbury Ring and Chanctonbury Ring. The route runs northwards from Hill Barn to Cissbury Ring, then eastwards The Steyning Bowl Road but turns northwards before the road taking the track to Steyning Bowl. It then continues on the South Downs Way to Chanctonbury Ring, where it swings south-west to Findon Park Farm. It stays on public bridleways to climb Cissbury Ring again and back to Hill Barn.