Ireland's Eye () is a small long-uninhabited island off the coast of County Dublin, Ireland. Situated directly north of Howth village and harbour, the island is easily reached by regular seasonal tourist boats, which both circumnavigate it and drop off day trippers. There is a yacht anchorage to the north of it, and kayakers also land. The island is formed from quartzite and greywackes, and some sandstone, and has soils based on glacial drift. It is home to nationally significant bird populations, notably of guillemots, razorbills, kittiwakes and cormorants, as well as gulls, and also including modest numbers of puffins and peregrine falcons. There is a colony of grey seals, and surrounding waters also host harbour seals and harbour porpoise, while on land there are rats and rabbits. There is a range of plants, including some rare species and some specific to vegetated cliffs. The island has been essentially uninhabited for centuries but holds the ruins of an early church, and a Martello tower. The Eye is the basis for both a Special Area of Conservation and a Special Protection Area, and is incorporated within the Howth Special Amenity Area, and the Dublin Bay Biosphere, among other designations. It is part of Fingal for administrative purposes, having been moved to County Dublin along with Howth, Sutton, Baldoyle and Kilbarrack, from the jurisdiction of Dublin. The island was for centuries a possession of the archdiocese of Dublin, and then a component of the Howth Estate. It was sold to the Tetrarch investment group as part of a deal finalised in 2019. Etymology The name of the island is often assumed to be related to the eye, but has a quite different origin. According to Patrick Weston Joyce in Irish Local Names Explained (1870), the island was originally called Inis Ereann ("Éire's island"). Éire was both a female name and the Irish-language name for Ireland. Joyce says that the Vikings translated this to Ireland's Ey, with ey being the Old Norse word for "island". The traditional Irish name of the island was Inis mac Nessan, now Inis Mac Neasáin, "island of the sons of Neasán". This was historically Anglicized as 'Inishmacnessan' and called in Latin Insula Filiorum Nessani. The island has also been known in the past as Inis Faithlenn, "the grassy island", Nature Location and structure Ireland's Eye occupies a prominent site off Howth Head and is a feature of the