Trip Planner: Europe / Ireland / Western Ireland / Province of Connacht / County Galway / Aran Islands / Inishmore / Dun Aonghasa
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.
Tours to Dun Aonghasa
Dun Aonghasa Reviews
Fantastic views truly worth the hike and the entry fee! Very knowledgeable guides and a thrilling experience when you approach the edge. Bring your camera but don't forget to use your own eyes too 😊
Love the walk up. The views. The sense if being on the Cliff's edge. It is gorgeous up there. Go! And get ice cream or a milkshake on the way back
Places to stay near Dun Aonghasa
Plan your trip to Inishmore
Get a personalized planA complete day-by-day itinerary
based on your preferences
Customize itRefine your plan. We'll find the
best routes and schedules
Book itChoose from the best hotels
and activities. Up to 50% off
Manage itEverything in one place.
Everyone on the same page.
Popular things to do in Inishmore
Hidden gems in Inishmore
Nearby attractions in Inishmore
Nature in Inishmore
Historic Sites in Inishmore
Plans to Dun Aonghasa by other users
27 days in Ireland, Derry & Belfast BY A USER FROM CANADA April, culture, outdoors, relaxing, beaches, popular & hidden gems PREFERENCES: April, culture, outdoors, relaxing, beaches ATTRACTION STYLE: Popular & hidden gems PACE: Medium 10 days in Western Ireland BY A USER FROM CANADA April, popular sights PREFERENCES: April ATTRACTION STYLE: Popular sights PACE: Medium 15 days in Ireland's West Coast BY A USER FROM UNITED STATES October, popular sights PREFERENCES: October ATTRACTION STYLE: Popular sights PACE: Medium 24 days in Ireland BY A USER FROM SOUTH AFRICA September, popular sights PREFERENCES: September ATTRACTION STYLE: Popular sights PACE: Medium 12 days in Western Ireland BY A USER FROM UNITED STATES April, popular sights PREFERENCES: April ATTRACTION STYLE: Popular sights PACE: Medium 1 day in Inishmore BY A USER FROM GERMANY September, popular sights PREFERENCES: September ATTRACTION STYLE: Popular sights PACE: Medium