The DRRt is a cross country challenge from one of the largest mountainbike clubs in the UK. The Dorset Rough Riders have been seeking out the best trails in the Purbeck hills and have produced a demanding 35 mile route which covers the best riding in the area. 4,000 feet of climbing featuring clifftop bridleways, outstanding sea views, rolling chalk downs to sandy heathland and a forest, there's just about everything you could wish for.
Entry from £15 (£10 DRR members) includes T shirt, DRR drinks bottle, map, directions and certificate. Sign in 9 to 10am. Half way food and drink point. Close 4pm.
Car park charges apply. For more details, visit www.dorsetroughriders.co.uk