Rock of Dunamase, Portlaoise

#1 of 15 in Things to do in Portlaoise
Geologic Formation · Nature / Park
Storm the castle at Rock of Dunamase, a fortress dating back to the 12th century and once pillaged by Vikings. The rock itself stands above a flat plain, which holds the castle ruins and offers picturesque views of the countryside. The structure has passed through many hands, including the Normans and local Irish lords, and local tradition says it was besieged and blown up by the Cromwellian generals in 1651. While there are no records of these events, it is probably the best explanation for the ruins you can explore today. Take care when navigating the castle, as some parts can be dangerous. Add Rock of Dunamase to your Portlaoise travel itinerary, and discover new vacation ideas by using our Portlaoise trip planning tool.
Create an itinerary including Rock of Dunamase

Rock of Dunamase reviews

Rate this attraction
TripAdvisor traveler rating
TripAdvisor traveler rating 4.5
486 reviews
  • My friend brought us here and said we absolutely needed to see it, she wasn't wrong! This was absolutely amazing, got to walk through the ruins and perched up on the hill you could see for miles...  more »
  • It had been a long time since I wanted to see this place and it was fabulous to walk through the ruins and have those amazing views all around  more »
  • Wonderful place! If you fond of old ruins rarely visited by people you will find the place lovely. You can almost hear the swords clashing and armors shattering. The description of the site is poor. Would come handy if someone would spare a coin to prepare a proper storyline or a larger history of the site.
  • Very nice site. Easy to get around but bring good footwear . Lots of paths but finished in loose stone and quiet steep in places. However still very interesting.

Plan your trip to Portlaoise

  • Get a personalized trip
    A complete day by day itinerary
    based on your preferences
  • Customize it
    Refine your trip. 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.