Dun Aonghasa

DĂșn Aonghasa

Contact Details


Co Galway,
H91 YT20

Tel. No: +353 (99) 61008
Fax No: +353 (99) 61009

Email: dunaonghasa@opw.ie

Opening Hours


Open all Year.

Opening Times:

January - March
09:30 - 16:00
Monday - Sunday

April - October
09:30 - 18:00
Monday - Sunday

November - December
09:30 - 16:00
Monday - Sunday

Average Length of Visit: 1 - 1.5 Hours.


Admission Fees

Adult: €5.00
Group/Senior: €4.00
Child/Student: €3.00
Family: €13.00
Free admission when staying overnight on Inis Mór participating accommodation.
Credit Card Facilities



Restaurant/Tearooms: Yes




Please note that the visitor centre is closed at present .

Visitors can access the site and guides are present.

Perched on a cliff overlooking the Atlantic ocean, Dún Aonghasa is the largest of the prehistoric stone forts of the Aran Islands. The fort consists of three massive dry-stone walls and a chevaux-de-frise, a dense band of jagged, upright stones, surrounding the fort from cliff to cliff, designed to impede attackers.  Originally constructed c.1100BC, it was re-fortified around 700-800 AD.  Excavations revealed significant evidence of prehistoric metalworking, as well as several houses and burials.

Visitor safety information: Dún Aonghasa is about 1km form the Visitors Centre and is approached over rising ground.  The last section of the path is over rough, natural rock and care is needed, especially when descending.  Boots or strong walking shoes are recommended.  There is no fence or barrier at the edge of the cliff. 

Please note that Dún Aonghasa is a vulnerable site. Visitors are therefore asked to co-operate with our effort to protect this monument by not interfering with this site in any way.

Location: 7 km west of Cill Rónáin.  Local ferry boat service from Ros a 'Mhíl to Cill Rónáin.  Air service from Indreabhán to Cill Éinne.  Private tourist buses and bicycle hire available in Cill Rónáin.

Leaflet/Guide Book: English, Irish, French, German, Italian.

Photography / Video Allowed: Yes. Permission required for commercial purposes