Carrickabraghy Castle
Carrickabraghy Castle stands on a greenstone dyke in the north west point of the Isle of Doagh, 1 mile east of the island of Glasheady; it is built of rough quartz rock of the same kind as the rocks within a few yards of it.
Built in the 16th century on a rocky promontory with spectacular views of the Donegal hills and headlands, this O’Doherty stronghold stands on the site of a pre-Viking settlement recorded in the Annal.
There is a landing place for boats to the west of the square tower, within a stone’s throw of its battlements.