Inishmore is the largest of the Aran Islands in Galway Bay, off the west coast of Ireland. With an area of 31 km2 and a population of about 840, it is the second-largest island off the Irish coast and most populous of the Aran Islands.
The island is in the Irish-speaking Gaeltacht and has a strong Irish culture. Much of the island is karst landscape and it has a wealth of ancient and medieval sites including Dún Aonghasa, described as "the most magnificent barbaric monument in Europe" by George Petrie.
Wikipedia https://en.wikipedia.org/wiki/Inishmore
Coordinates 53°7'32.184" N -9°43'23.169" E
