sentences:  The area is a tourist attraction with a permanent exhibition on the lough and its importance at nearby Skibbereen Heritage Centre.The ruins of Saint Bridgit's Church are on the shores of the lake, as well as holy wells, Tobarín Súl and Skour Well, on the side of Knockomagh Hill.Castle Island is located in the center of the lake where the ruins of Cloghan Castle, once a fortress of the O'Driscoll clan, are still visible.