On the green slopes of Slieve Martin in County Down where the Mourne Mountains reach Carlingford Lough rests a forty-ton glacial rock called Cloughmore. According to Irish folklore, the giant Fionn M'Comhal hurled the enormous boulder at Benandonner, his Caledonian foe from Scotland, and many believe that ancient Druids chose the site for their rituals. Rain obscures the view from the stone's side some two hundred days of the year, but on a clear day, a stunning vista from Cloughmore emerges: streams trickling down to the shores of the deep Irish Sea and, amidst woods running uphill, the small village of Rostrevor.