Strewn like limestone chips hammered off the jagged west coast, the three Aran Islands — Inishmore, Inishmaan, and Inisheer — confront the wild Atlantic with stubborn grit. Craggy, vertical cliffs fortify the southern flanks of each island. Windswept rocky fields, stitched together by stone walls, blanket the interiors. And the island's precious few sandy beaches hide in coves that dimple the northern shores. The vast majority of the islands' visitors make a day trip to Inishmore (the biggest of the islands), where they take a minivan tour to the must-see Iron Age fort of Dun Aengus.