O'Brien's Castle, Inisheer

#3 of 6 in Things to do in Inisheer
O'Brien's Castle is located in Inisheer. Take a look at our Inisheer attractions planner to schedule your visit to O'Brien's Castle and learn about what else to see and do during your holiday.
Create an itinerary including O'Brien's Castle
© OpenMapTiles © OpenStreetMap contributors
O'Brien's Castle Reviews
Rate this attraction
TripAdvisor Traveler Rating
TripAdvisor Traveler Rating 4.5
90 reviews
  • As others have said these ruins are not huge, but the views of the island and the ocean with the castle in the foreground, absolutely beautiful. I took some of my favorite pictures of my whole Ireland...  more »
  • We decided to walk up to the castle ruins and were rewarded with some great views of the Island. The castle ruins themselves are not large or really impressive, but they are on a great vantage point t...  more »
Places to stay near O'Brien's Castle

Plan your trip to Inisheer

  • 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.

Popular things to do in Inisheer

Duration: 2​h
Duration: 30​min
Duration: 2​h
Duration: 2​h