 The event has been run since 2002 over one weekend in March each year and consists of a series of on road treasure hunts interspersed with off-road challenges.The event covers up to 1,000 miles and raises up to in excess of £100,000 for Macmillan Cancer Support each year.No special vehicle modifications are required to enter, any sensibly equipped 4x4 should be able to complete the event.