Built in 1636 by Sir Randal MacDonnell, 1st Earl of Antrim, Glenarm has been the family seat of the McDonnells, Earls of Antrim, for roughly 400 years and remains a working farm estate at the heart of the Glens of Antrim. Its walled garden is a major visitor draw.
Visiting Glenarm Castle
Yes, walled garden and grounds open seasonally; castle interior private
Where to stay nearby
The closest castle hotel is Ballygally Castle, 11.25 km away in Ballygally — Built in 1625 by Scottish settler James Shaw, used during the Irish Civil Wars and 1641 rebellion; the only 17th-century building in Northern Ireland still in continuous use as a residence today.
Ballygally Castle
Ballygally, Co. Antrim · 4-star
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