Ballycastle is a village and resort 26 km north-west of Ballina. The surrounding area is rich with archaeological treasures, dating from the Neolithic period. There are over 30 court-tombs alone in this area including two very interesting ones in Ballyglass townland, where Neolithic house-sites were discovered during excavations. The ruin of St. Patrick's Church, Poll na Seantainne (a puffing hole with a subterranean channel to the sea), and the spectacular Dun Briste can be seen at Downpatrick Head, 8 km north-east. Dun Briste is a fragment of the cliff, 63m x 23m and 45m high, broken off in some natural cataclysm, 228m from the shore.