Greencastle, Medieval fortress in County Down, Northern Ireland
The stone castle stands at the entrance of Carlingford Lough with rectangular walls and remnants of four corner towers measuring 18 meters by 8.5 meters internally.
Built in the 13th century by Hugh de Lacy, the castle was captured by Edward Bruce in 1316 and maintained as an English garrison until the 1590s.
Archaeological excavations between 1966 and 1970 revealed multiple occupation layers and medieval burial sites containing remains from the castle's construction period.
The castle opens on Saturdays and Sundays until mid-September from 10:00 AM to 5:00 PM, with final entry at 4:30 PM.
A rock-cut ditch surrounds the castle, measuring 7 meters wide at the top, narrowing to 3 meters at its base, with a depth of 3.5 meters.
GPS coordinates: 54.04050,-6.10430
Latest update: May 17, 2025 10:51
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