1. Explore Dún Aonghasa, Inis Mór
I highly recommend exploring Dún Aonghasa, a magnificent prehistoric stone fort perched dramatically on a 100-meter high cliff edge. The walk to the fort from the visitor centre is about 1km over rising, uneven ground, offering breathtaking views of the Atlantic Ocean and the island's unique landscape. This site provides a profound connection to ancient Irish history, dating back over 3,000 years, and its defensive structure is truly impressive. Wear sturdy footwear for the climb, and be cautious near the unguarded cliff edges.
Cost: Adult entry is approximately €5.
Transport: Dún Aonghasa is located on Inis Mór. From Kilronan pier, you can cycle (approximately 20-30 minutes), take a pony and trap tour, or a minibus tour.