Glenveagh National Park

The second-largest national park in Ireland at 170 square kilometres, taking in much of the Derryveagh Mountains, Lough Veagh, and the castle and gardens on its shore, and, as of 2024, the only national park anywhere in Ulster. Captain John George Adair built the castle and founded the estate, and left an ugly name behind him: during the famine of 1861 he evicted forty-four families, 224 people, from their blackhouses, which earned him the nickname Black Jack Adair. Henry McIlhenny bequeathed the place to the Irish state in the 1970s.