Sketrick Castle, Medieval tower house in Strangford Lough, Northern Ireland
Sketrick Castle stands as a rectangular stone structure on Sketrick Island, measuring 51 feet long and 27 feet wide with remaining north and east walls.
The castle appears in records from 1470 when an O'Neill army captured it and transferred control to MacQuillan for safekeeping during regional conflicts.
The medieval fortress includes architectural elements such as a boat bay and stone passages, reflecting the maritime defensive priorities of coastal Northern Ireland.
Visitors can access the castle grounds without charge and explore the remaining walls, underground passages, and water spring chamber throughout the year.
The castle contains a hidden underground passage, discovered in 1957, extending 15 meters to connect with a fresh water spring beneath a corbelled vault.
GPS coordinates: 54.48790,-5.64850
Latest update: March 6, 2025 19:38
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