10 Magnificent Irish Castles You Must Visit

Illustration of an Irish castle on a hilltop

Ireland's landscape is dotted with hundreds of castles, from crumbling ruins to meticulously restored medieval fortresses. These magnificent structures tell the stories of Ireland's complex history, from ancient Celtic kingdoms to Norman invasions and English conquests. Here's our guide to ten of Ireland's most impressive castles that deserve a place on your Irish itinerary.

1. Blarney Castle, County Cork

Built nearly six hundred years ago by one of Ireland's greatest chieftains, Cormac MacCarthy, Blarney Castle is a must-visit attraction. The castle is home to the famous Blarney Stone, which according to legend, grants the "gift of the gab" (eloquent speech) to anyone who kisses it. While the stone is the main attraction, don't miss the beautiful gardens, including the Poison Garden and the Rock Close with its ancient yew trees and druidic stones.

Visitor Information: Open year-round with seasonal hours. Allow at least 2-3 hours to explore the castle and gardens. Kissing the Blarney Stone involves climbing to the top of the castle and leaning backward over a considerable drop (while being safely held, of course).

2. Dublin Castle, Dublin

In the heart of Ireland's capital city stands Dublin Castle, a symbol of English rule for over 700 years. While much of the current building dates from the 18th century, the medieval Record Tower and the undercroft of the original 13th-century castle remain. Today, the castle hosts state ceremonies and is open to visitors who can explore the State Apartments, the Medieval Undercroft, and the beautiful Chapel Royal.

Visitor Information: Located in central Dublin, the castle is easily accessible by public transport. Guided tours are available hourly and provide access to areas not covered by self-guided tours.

3. Kilkenny Castle, County Kilkenny

A dramatic silhouette against the skyline of medieval Kilkenny city, this castle was built in 1195 by Norman occupiers but was later purchased by the Butler family who made it their ancestral home for nearly 600 years. Extensively restored, the castle now stands as a testament to Victorian tastes and sensibilities. Visitors can explore numerous rooms including the impressive Picture Gallery Wing, and stroll through the formal terraced gardens and woodland areas.

Visitor Information: The castle is open year-round, with extended hours during summer. The grounds, which include a playground and picnic area, are free to enter.

4. Bunratty Castle, County Clare

Ireland's most complete and authentic medieval fortress, Bunratty Castle was built in 1425 and has been fully restored to its former glory. The castle is furnished with a fine collection of medieval furniture and artifacts, giving visitors a genuine sense of what life was like in medieval Ireland. The castle is surrounded by Bunratty Folk Park, a recreation of a 19th-century Irish village complete with thatched cottages, shops, and rural farmhouses.

Visitor Information: For a unique experience, book tickets for the medieval banquet held nightly at the castle, complete with period entertainment and food served in the traditional manner.

5. Ashford Castle, County Mayo

Now one of Ireland's most luxurious hotels, Ashford Castle began as a medieval fortress built in 1228 by the Anglo-Norman de Burgo family. The estate passed through many hands over the centuries, including the famous Guinness family who expanded the estate and added Victorian extensions. Set on 350 acres of manicured gardens and woodland on the shores of Lough Corrib, the castle offers sumptuous interiors and activities such as falconry, horseback riding, and fishing.

Visitor Information: While staying at the castle hotel is a splendid treat (if your budget allows), non-guests can enjoy the grounds with a day pass or by booking activities at the falconry school or afternoon tea in the elegant drawing room.

6. Trim Castle, County Meath

The largest Anglo-Norman castle in Ireland, Trim Castle took more than 30 years to build, beginning in 1172. Its massive twenty-sided tower, unique in Ireland, stands over 70 feet high and is surrounded by a ditch, curtain wall, and moat. Movie buffs may recognize the castle as a filming location for the movie "Braveheart." Trim Castle offers some of the best views of the surrounding countryside from its top levels.

Visitor Information: Access to the keep is by guided tour only, for safety reasons. The grounds can be explored independently. The castle is closed during winter months except for special events.

7. Cahir Castle, County Tipperary

One of Ireland's largest and best-preserved medieval castles, Cahir Castle sits on a rocky island in the River Suir. Built in the 13th century, the castle was designed to be defensive, with thick walls, a portcullis, and numerous murder holes (openings for firing arrows or dropping objects on attackers). The castle survived multiple sieges throughout its history and retains much of its original structure, giving visitors an authentic look at medieval castle design.

Visitor Information: An audiovisual show provides a good introduction to the castle's history. Combine your visit with the nearby Swiss Cottage for a perfect day out.

8. Dunluce Castle, County Antrim

Perched dramatically on the cliffs of the north Antrim coast, Dunluce Castle is one of Ireland's most picturesque ruins. Built in the 13th century, the castle changed hands many times during the turbulent history of Ulster. Legend has it that one stormy night in 1639, part of the kitchen collapsed into the sea below, taking seven cooks with it. Only the kitchen boy survived, having been seated in the corner that remained standing.

Visitor Information: The castle can be explored year-round, though opening hours are reduced in winter. The stunning coastal views make this a photographer's dream, especially at sunset.

9. Malahide Castle, County Dublin

Just a short drive from Dublin city center, Malahide Castle combines medieval architecture with a fascinating family history. The castle was home to the Talbot family for nearly 800 years until 1976, making it one of the oldest Irish castles continuously inhabited by the same family. The castle is said to be haunted by at least five ghosts, including the court jester, Puck, who reportedly appears when significant changes are about to happen at the castle.

Visitor Information: The guided tour includes the beautiful reception rooms and bedrooms, complete with period furniture. The surrounding parkland includes a walled garden, trails, and a popular playground.

10. Rock of Cashel, County Tipperary

While technically a collection of medieval buildings rather than a traditional castle, the Rock of Cashel is one of Ireland's most spectacular archaeological sites. Set on a limestone outcrop overlooking the Golden Vale, this historic site includes a 12th-century round tower, High Cross, Romanesque Chapel, 13th-century Gothic cathedral, and 15th-century castle. According to legend, the Rock of Cashel originated from Devil's Bit, a mountain 20 miles north, when St. Patrick banished Satan from a cave, resulting in the rock landing at Cashel.

Visitor Information: One of Ireland's most visited heritage sites, the Rock of Cashel can get very busy in summer months. Visit early or late in the day for a less crowded experience.

Tips for Castle Visiting in Ireland

  • Many castles offer significant discounts for booking online in advance.
  • Consider purchasing an OPW Heritage Card if you plan to visit multiple sites managed by the Office of Public Works.
  • Irish weather can be unpredictable; castle ruins typically involve outdoor walking, so bring waterproof clothing.
  • Photography is usually permitted, but flash photography may be restricted in certain areas with delicate artifacts.
  • Some castles host special events, particularly during summer and around Halloween - check their websites for details.

Ireland's castles provide a tangible link to the country's rich and complex past. Whether you're interested in architecture, history, photography, or simply want to experience the atmosphere of these ancient strongholds, Ireland's castles offer something for everyone. At Emerald Journeys, we include castle visits in many of our tour itineraries, giving you the opportunity to step back in time and experience the grandeur and drama of Ireland's medieval past.

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