Dun Aonghasa

Aran Island

Dun Aonghasa 

If you’re looking for an archaeological wonder to explore, look no further than Dun Aonghasa on the Aran Islands in Ireland. This ancient fort is steeped in mystery and surrounded by beautiful landscape. It’s no wonder that it has been featured in documentaries and TV shows around the world! If you’re interested in history and want to see something truly unique, be sure to add Dun Aonghasa to your list of places to visit!

Dun Aonghasa is a popular tourist destination also because it offers stunning views of the Atlantic Ocean. The cliff face of Dun Aonghasa is known for its series of spectacular sea stacks that rise up from the waves below and it’s one of the most picturesque spots on the island.

The fort is open to visitors and offers a variety of experiences, from exploring the ruins to learning about the fort’s history. Visitors can also enjoy the panoramic view of the surroundings from the fort.

Dun Aonghasa is a uniquely beautiful and serene hiking trail on the Aran Islands. It’s a great place to go if you’re looking for some peace and quiet, stunning views, and an opportunity to get away from it all.

The hike to Dun Aonghasa is about 1 mile long. The view from the fort at the top of Dun Aonghasa is well worth the effort, though, so don’t be discouraged if you’re not in top shape! There are also several other trails on the Aran Islands that are worth exploring if you have more time.

The fascinating history of Dun Aonghasa

Aran Island


Dun Aonghasa is a prehistoric fortress located on the edge of a cliff on the Aran Islands, located off the west coast of Ireland.

Dun Aonghasa is a prehistoric fortress located on the edge of a cliff on the Aran Islands. It was built in the early Iron Age and overlooks the Atlantic Ocean. The original fortification was probably made of earth and stone, but it has been rebuilt and expanded over time. The fort is now home to a number of goats that live among the ruins.

It is thought to have been constructed in the late Bronze Age or early Iron Age, and may have been used as a ceremonial or ritual center. The fortifications consist of a series of drystone walls that enclose an area measuring about 60 meters by 30 meters.

The site has been excavated several times, and artifacts including pottery fragments and animal bones have been found.

The Aran Islands are famous for their prehistoric ruins, which include Dun Aonghasa as well as other structures such as Dún Chonchúir and Dún Eochla.

dun aonghasa gallery

Aran Island
Aran Island
Aran Island
Aran Island
Aran Island
Aran Island

Map & Directions from Aran Bike Hire to

Dun Aonghasa 



Getting to Dun Aonghasa (Dún Aonghasa) fort from Kilronan Village by bike is a scenic journey that allows you to enjoy the natural beauty of Inishmore, the largest of the Aran Islands. Here’s how you can make the trip:

Start from Kilronan Village:

    • Begin your journey at Kilronan, the main village on Inishmore. Remember the main Village of Kilronan conveniently has the following: A Tourism Information Center, A Spar Supermarket, Three pubs, A restaurant and a Cafe.
  1. Head West:
    • The route to Dun Aonghasa is quite straightforward. You’ll be heading mostly west.
    • Follow the main road that leads out of the village. This road starts at the Aran Sweater Market. The main Road is signposted. Follow the Green signs in order to stay on the flat coastal road which goes past The Seal Colony. Follow the Red signs if you wish to take the hill route to Dun Aonghasa.
  2. Enjoy the Scenery:
    • The island is known for its scenic beauty, so make sure to take in the views as you ride. You’ll pass traditional Irish cottages, dry stone walls, monuments, churches, Celtic sights, a Goats Cheese Factory, secret beaches, Puffing Holes, Seal Colony, Kilmurvey Beach, and you will see some livestock grazing. You will also be in constant view of the Sea, and there are clear views of Connemara in the background.
  3. Route Choices:
    • There are a couple of minor roads that lead off the main road, but keep following the signs for Dun Aonghasa. In the event that you do take a detour, don’t stress!.
    • The distance is about 6 km (4 miles), so it’s not a very long ride, but it’s always good to keep a leisurely pace to enjoy the surroundings.
  4. Arrival at Dun Aonghasa:
    • Once you arrive, there will be a place to lock up your bike.
    • Note that there’s a bit of a walk from the bike parking area to the actual fort. The path is uphill, but it’s well-maintained and not too strenuous.
  5. Tips for the Journey:
    • Bring water and snacks.
    • Wear appropriate clothing and sunscreen, as the weather can change and there’s not much shade on the route.
    • Be mindful of the time, especially if you need to return the bike or catch a ferry.

Remember, the journey is part of the experience, so take your time and enjoy the unique landscape of the Aran Islands!




  1. How long does it take to bike from Kilronan Village to Dun Aonghasa?

    • It typically takes around 30-45 minutes, depending on your pace.
  2. Is the route to Dun Aonghasa well-signposted?

    • Yes, the route is straightforward with clear signage.
  3. Are bike rentals available in Kilronan Village?

    • Yes, there are several bike rental shops in the village.
  4. What are the bike rental rates?

    • Rates vary, but you can expect to pay around €10-€20 per day.
  5. Do I need to reserve a bike in advance?

    • It’s a good idea during peak tourist seasons, but not always necessary.
  6. Is the road to Dun Aonghasa hilly or flat?

    • The route is relatively flat with a gentle incline closer to the fort.
  7. Are there places to lock up my bike at Dun Aonghasa?

    • Yes, there are designated areas to secure your bike.
  8. Is it safe to bike with children?

    • Yes, but ensure they are comfortable with longer distances and always wear helmets.
  9. What should I bring for the bike ride?

    • Water, snacks, sunscreen, a map, and a camera for photos.
  10. What type of bike is best for the journey?

    • A standard road or hybrid bike is suitable for the terrain.
  11. Can I bring my own bike to Inishmore?

    • Yes, you can bring bikes on the ferry, usually for an extra charge.
  12. Are there rest stops or facilities along the way?

    • There are a few spots, but it’s best to bring necessities with you.
  13. What happens if my bike breaks down?

    • Some rental shops offer assistance. It’s wise to have a contact number just in case.
  14. Is the route suitable for inexperienced cyclists?

    • Yes, the route is popular and manageable for cyclists of all levels.
  15. What are the rental shop operating hours?

    • They typically open around 9 am and close around 6 pm, but times can vary.
  16. Do I need to wear a helmet?

    • It’s highly recommended for safety, though not legally required.
  17. Can I bike to Dun Aonghasa all year round?

    • Yes, but be mindful of shorter days and changing weather conditions in winter.
  18. Are guided bike tours available to Dun Aonghasa?

    • Yes, several companies offer guided cycling tours.
  19. How much time should I allocate for the whole trip, including visiting the fort?

    • Allocate at least half a day to enjoy the ride and explore the site without rush.
  20. Is there a fee to enter Dun Aonghasa?

    • Yes, there’s a small fee for entry to the fort.

Remember to check the latest information and local advice as details can change. Enjoy your bike ride to Dun Aonghasa!