Known as "The Tough One" the Three Forts Marathon (approximately 27.2 miles) includes a total of c. 3450 ft of climb with stiles and rough tracks underfoot. The route runs northwards from Hill Barn to Cissbury Ring, then eastwards towards Coombs then to Botolphs and the River Adur crossing. The route then goes to Devil’s Dyke and back to the River Adur. It continues on the South Downs Way to Chanctonbury Ring, where it swings south-west to Findon Park Farm. It stays on public bridleways to Cissbury Ring and back to Hill Barn. The entry limit is increased to 500. Closing date is 14 April, 2014. Race Date is 4 May, 2014. Entries on the day if available.The Half Marathon, with a total climb of c.1450 takes a shorter route to Steyning Bowl and picks up the last part of the Marathon route. The map shows the route in more detail and can be used in conjunction with the appropriate OS map.