Narrow Water Castle, also known as Narrow Water Keep, stands near Warrenpoint where the Newry River approaches Carlingford Lough. Its position commanded a strategically important crossing and waterway between Counties Down, Armagh and Louth.
A 16th-century tower house
The surviving tower house and bawn were built in the 1560s for an English garrison. A lease from 1570 records cottages within the castle precinct, and the site later passed into the hands of the Gaelic Magennis family.
Defensive features include gun loops, a protected entrance, a murder hole and a wall walk behind stepped battlements. Inside are chambers arranged across several levels, including a barrel-vaulted first-floor room. The official Department for Communities heritage record provides further architectural and access information.
The keep and the later mansion
The historic keep should not be confused with the nearby country house that also carries the Narrow Water Castle name. That Tudor Revival mansion was completed in the 1830s, while the monument beside the river is several centuries older.
Carlingford Lough and the Cooley landscape
From this narrow stretch of water, the view extends towards the Cooley Peninsula and the mountains of County Louth. The wider landscape is closely connected with the Irish epic Táin Bó Cúailnge, the Cattle Raid of Cooley, and the legendary warrior Cú Chulainn.
Visitors should check current opening and access information before travelling. For broader destination inspiration, explore the site’s private tours across Ireland.
