Land yachting is pretty much as described: imagine a buggy with a big sail that can be propelled by winds of less than 10mph and can travel at speeds in excess of 60mph. With the ground whizzing by an inch away, racing land yachts at almost any speed can be exhilarating. Organise your group into teams, have races or simply have a cruise and a lark. Either way, everyone will have a fun and unusual day to remember.