Enniskillen Castle, situated beside the River Erne in County Fermanagh, was built almost 600 years ago by the ruling Gaelic Maguires. Guarding one of the few passes into Ulster, it has been strategically important throughout its history. Today, the historic site houses two museums, Fermanagh County Museum and The Inniskillings Museum. Please note that Enniskillen Castle is open especially on Easter Sunday 1 April 2018 11am-5pm