Dun Aonghasa, Inishmore

4.8
#1 of 13 in Things to do in Inishmore
Ruin Historic Site
Perched atop a cliff, Dun Aonghasa represents the most popular of the prehistoric forts on the Aran Islands. Walk from the nearby museum up to the fort and enjoy panoramic views from the 100 m (328 ft) cliff. Marvel at the three terraced walls and intricate defense system of stones called Chevaux de Frise. Archeological studies have revealed that the fort was built in the Iron Age, possibly as far back as 1100 BCE, though the triple-wall defenses were likely added around 500 BCE. The fort is named for a pre-Christian god or mythical king, Aonghus mac Umhor. Explore the history of this ancient monument, but take care when walking and climbing around the site, especially with children, as it can be slippery. See Dun Aonghasa and all Inishmore has to offer by arranging your trip with our Inishmore trip generator.
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Reviews
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1,006 reviews
Google
4.8
  • There are numerous stone circle forts throughout Ireland, but this one is really spectacular. We visited Dun Aonghasa (Dun Aengus) on our first full day in Ireland so it really set a high standard. Th...  more »
  • The hike up to the ancient stone ring fort takes about 15-20 minutes. There are a couple of short stretches where the path is rocky and a bit steep. Once you get there the views from the top of the cl...  more »
  • The hike up to the fort is not that long, but there are sections toward the end that are very rocky and even slippery from worn rocks. I would recommend hiking shoes. It's a pleasant climb, however, w...  more »
Google
  • I loved this place. The sheer cliffs right on the ocean are stunning. I would strongly recommend against small children but for adults and older kids it's a good place to explore the Norman fort and basalt formations.
  • I love visiting the Aran Islands, and this is a great site. If it's nice out rent a bike and go, if it's not nice out, rent a bike if you can handle it, if you can't, take a tour with a local van and you'll have a blast either way. I've done both. My sister and I still laugh about ours and how hilarious he was.
  • Jaw dropping beauty. It's absolutely stunning! Brace yourself for a big walk and no 3G.
  • Incredible view! I was very surprised that there is absolutely NOTHING protecting visitors from just falling over. Ha! It was really neat to lay flat on your belly to peer over the ledge and straight down into the Atlantic!
  • Fantastic landscape, and nice walk. Fort itself is a bit underwhelming, but the drop off the edge of it will make up for that. Be careful, because it's an unprotected cliff. If you're stuck for time give this a miss and see the wormhole instead.

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Where to stay in Inishmore

Take your time soaking in the beauty of the largest of the Aran Islands, Inishmore, while staying at one of its beautiful bed and breakfasts or renting a guesthouse. Accommodations range from private homes overlooking their own beaches and stone mansions, to basic rentals and quaint bed and breakfast spots. Many options are located in the town of Kilronan, but you can choose the island spot that best fits your needs (either seaside to close to ruins).
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