Galway Bay is a bay on the west coast of Ireland, between County Galway in the province of Connacht to the north and the Burren in County Clare in the province of Munster to the south. Galway city is located on the northeast side of the bay. The bay is about 50 kilometres long and from 10 kilometres to 30 kilometres in breadth. The Aran Islands are to the west across the entrance and there are numerous small islands within the bay. To the west of Galway, the rocks are granite but to the south they are limestone.The approaches to the bay between the Aran Islands and the mainland are as follows:
the North Sound lies between Inishmore and Leitir Mealláin in Connemara; known as Bealach Locha Lurgan in Irish.
Wikipedia https://en.wikipedia.org/wiki/Galway_Bay
Coordinates 53°10'13.757" N -9°23'49.887" E