Dun Aonghasa, Inishmore

4.7
#1 of 13 in Things to do in Inishmore
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. For Dun Aonghasa and beyond, use our Inishmore itinerary builder app to get the most from your Inishmore vacation.
Create an itinerary including Dun Aonghasa
map
Dun Aonghasa Reviews
Rate this attraction
TripAdvisor Traveler Rating
TripAdvisor Traveler Rating 4.5
1,149 reviews
Google
4.7
TripAdvisor
  • Beautiful walk to the wormhole & then up to the fort. Wear sturdy shoes & bring a jacket - it was brisk up by the cliff in March!  more »
  • Visited with family in Aug 17. Trecked from the Serpents Liar - has to be seen also!!- to Dun Aonghasa and it's a fantastic walk. Not for anyone with walking difficulties but well worth the effort. On...  more »
  • Breathtaking scenes. It was very windy when we went, but was a great experience. The sights were amazing and the landscape is very beautiful, I would go again but dress warmly.  more »
Google
  • If this were located in the US, there'd be a chain link fence all over the place. Amazing. We were there alone. We saw three others on our way out. Walk right up to the cliff's edge. Hell, jump off if you want. It is a bit of a hike. Get there before the liability lice infect.
  • Dun Aonghasa: An old fort on the edge of a cliff, with structures thought to have been built in the Bronze and Iron very impressive views up and down the coast also view over The Worm Hole: A large rock formation which completely fills up with water when the waves crash over it used for red bull cliff diving. best and most popular way to get hear is by bike but you can also get island tour bus picture are from red bull cliff diving
  • Loved it! If you can make it, definitely check it out! Better when there’s not a crowd, so the best way to see it would be to stay on Inis Mor to get there early!
  • Don't go near the edge. Wear durable shoes that are good for wet and dry terrain!
  • It’s a truly spectacular please. I totally recommend it.
Places to stay near Dun Aonghasa

Plan your trip to Inishmore

  • Get a personalized plan

    A complete day-by-day itinerary
    based on your preferences
  • Customize it

    Refine your plan. We'll find the
    best routes and schedules
  • Book it

    Choose from the best hotels
    and activities. Up to 50% off
  • Manage it

    Everything in one place.
    Everyone on the same page.

Plans to Dun Aonghasa by other users

4 days in Western Ireland BY A USER FROM GREECE June, fast-paced, popular PREFERENCES: June ATTRACTION STYLE: Popular PACE: Fast-paced 10 days in Ireland BY A USER FROM UNITED STATES October, culture, outdoors, relaxing, historic sites, museums, popular & hidden gems PREFERENCES: October, culture, outdoors, relaxing, historic sites, museums ATTRACTION STYLE: Popular & hidden gems PACE: Medium 13 days in Ireland BY A USER FROM CANADA May, culture, outdoors, romantic, historic sites, popular & hidden gems PREFERENCES: May, culture, outdoors, romantic, historic sites ATTRACTION STYLE: Popular & hidden gems PACE: Medium 16 days in Ireland BY A USER FROM CANADA May, culture, outdoors, romantic, historic sites, popular & hidden gems PREFERENCES: May, culture, outdoors, romantic, historic sites ATTRACTION STYLE: Popular & hidden gems PACE: Medium 16 days in United Kingdom & Ireland BY A USER FROM UNITED STATES September, culture, outdoors, relaxing, historic sites, museums, shopping, popular & hidden gems PREFERENCES: September, culture, outdoors, relaxing, historic sites, museums, shopping ATTRACTION STYLE: Popular & hidden gems PACE: Medium 15 days in Ireland BY A USER FROM AUSTRALIA June, culture, outdoors, relaxing, historic sites, hidden gems PREFERENCES: June, culture, outdoors, relaxing, historic sites ATTRACTION STYLE: Hidden gems PACE: Medium 12 days in Western Ireland BY A USER FROM UNITED STATES August, popular PREFERENCES: August ATTRACTION STYLE: Popular PACE: Medium 12 days in Ireland BY A USER FROM CANADA September, culture, outdoors, historic sites, museums, slow & easy, popular & hidden gems PREFERENCES: September, culture, outdoors, historic sites, museums ATTRACTION STYLE: Popular & hidden gems PACE: Slow & easy 13 days in Western Ireland BY A USER FROM UNITED STATES August, teens, culture, historic sites, popular PREFERENCES: August, teens, culture, historic sites ATTRACTION STYLE: Popular PACE: Medium 14 days in Ireland BY A USER FROM UNITED STATES May, culture, historic sites, museums, popular & hidden gems PREFERENCES: May, culture, historic sites, museums ATTRACTION STYLE: Popular & hidden gems PACE: Medium 7 days in Western Ireland BY A USER FROM UNITED STATES September, culture, outdoors, beaches, historic sites, popular & hidden gems PREFERENCES: September, culture, outdoors, beaches, historic sites ATTRACTION STYLE: Popular & hidden gems PACE: Medium 1 day in Inishmore BY A USER FROM IRELAND May, popular PREFERENCES: May ATTRACTION STYLE: Popular PACE: Medium
View more plans