Inishmurray is a lonely, low island off the Sligo coast, best known for the remains of an early Christian monastic settlement inside a stone cashel. Cross slabs, beehive-like cells and weathered walls sit in Atlantic exposure, which gives the place a starkness that inland ruins rarely have.
Access depends on sea conditions and local boat arrangements, so this is not a casual stroll from Rosses Point. If the weather and logistics line up, it is one of the area's strongest combinations of archaeology, seabirds and open-water drama.