Man-made underground passage in Dungooly

Dungooly is known for a man-made underground passage in a ringfort, though local tradition still calls it a cave. The distinction matters because the passage was built rather than dug by water or time. It may have served as a cellar, a refuge or a hidden route for people who lived beside the fort. In that dark tube beneath the earth, human hands shaped the stone and human fear or ambition gave the work a reason.