Kisimul Castle - Historic clan castle rising from the sea at Castlebay.

Kisimul Castle stands dramatically on a rocky islet in Castlebay on the Isle of Barra in the Outer Hebrides. Often called the "Castle in the Sea," this striking fortress has been the seat of Clan MacNeil since the 15th century. One of the most distinctive historic landmarks in the Outer Hebrides, the castle rises directly from the surrounding waters and forms an unforgettable focal point of Castlebay.

Accessible by a short boat trip from the harbour, visitors can explore the castle's sturdy curtain walls, restored halls and central tower house. The battlements offer sweeping views across Castlebay and the surrounding coastline. Over the centuries the stronghold defended the MacNeil clan from raiders and pirates, and today its preserved structures reveal stories of island life, clan history and coastal defence.

Plan your visit and discover the history of Kisimul Castle, checking boat schedules and opening times in Castlebay as access to the castle is by ferry and dependent on weather conditions.

Find directions easily using Google Maps.