It is about 1 km offshore from Maghery in County Armagh, is thickly wooded and of nearly 9 acres (36,000 m2) in area.
[2] Boat trips to the island are available at weekends from Maghery Country Park or Kinnego Marina.
[3] The island is owned by the National Trust and managed on their behalf by Armagh City, Banbridge and Craigavon Borough Council.
[10] The island was one of the O'Neill's major strongholds, but was delivered to Lord Deputy Sir Henry Sydney in 1567, and appears to have continued in use as a fort for a generation at least.
[2] In the 1890s, Coney Island was bought by James Caulfeild, 7th Viscount Charlemont (1830–1913), supposedly for £150.