A small island just 4 km off the mainland and 9km from the port of Howth. There are three anchorages here, Saltpan bay on the north coast, Talbots bay on the south coast and there is anchoring off the harbour on the west coast. The anchorages on the south and north coasts are bounded by steep-to cliffs and one can anchor really close in with good holding in 10 meters or less. They are a useful bolt-hole if the weather turns nasty or to await a foul tide. The anchorage off the harbour to the west is only good in settled weather, a 2/3 knot tidal stream runs north through here. Landing on the island is prohibited.