2011, May 4th. At Flimston Down you will find a natural arch called "The Green Bridge of Wales", Flimston Chapel and the Stack Rocks (or Elegug Stacks). At Flimston the coast path to Freshwater West is diverted inland through the villages of Warren and Castlemartin. Freshwater West itself is a well known surf beach and has recently provided a location for Ridley Scotts "Robin Hood" and for Harry Potters shell cottage