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Northern Ireland

Top 20 Castles in Northern Ireland

Castles in Northern Ireland offer a journey through centuries of history, set against diverse landscapes ranging from dramatic coastlines to lush parklands. This region features a variety of historical sites, including medieval strongholds, Georgian mansions, and picturesque ruins. Many castles are situated in areas with significant natural features, providing both cultural and outdoor exploration opportunities. Visitors can explore these landmarks to understand the region's past and appreciate its architectural heritage.

Best castles in Northern Ireland

  • The most popular castles is Belfast Castle, a historical site that is one of the city's most famous landmarks. This magnificent castle, built in the 1860s, is situated on the lower slopes of Cave Hill Country Park and offers panoramic views of Belfast.
  • Another must-see spot is Dunluce Castle Ruins, a natural monument and medieval castle. Located on the edge of a basalt outcropping in County Antrim, it is one of the most picturesque and romantic of Irish castles, with parts of it having collapsed into the sea.
  • Visitors also love Sketrick Castle, a castle and historic landmark. This large tower house, built in the mid-15th century, is situated on Sketrick Island and offers scenic coastal views.
  • Northern Ireland is known for its well-preserved Norman strongholds, medieval ruins, and 18th-century mansions. These sites showcase a blend of architectural styles and historical periods, from defensive structures to stately homes with extensive gardens.
  • The castles in Northern Ireland are appreciated by the komoot community, with 45 upvotes and 16 photos shared across the highlights.

Last updated: April 23, 2026

Sketrick Castle

Highlight • Castle

Sketrick Castkle is a historic landmark situated on Sketrick Island near Whiterock. The castle dates back to the 12th century and the grounds are free to explore.

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Dunseverick Castle

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It is said that Saint Patrick once visited Dunseverick Castle, where he baptized Olcán, a local man who later became Bishop of Ireland.

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Dunluce Castle Ruins

Highlight • Natural Monument

Dunluce Castle is a now-ruined medieval castle in Northern Ireland, the seat of Clan McDonnell. It is located on the edge of a basalt outcropping in County Antrim (between Portballintrae and Portrush), and is accessible via a bridge connecting it to the mainland. The castle is surrounded by extremely steep drops on either side, which may have been an important factor to the early Christians and Vikings who were drawn to this place where an early Irish fort once stood.

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Belfast Castle

Highlight • Historical Site

Magnificent castle built in the 1860s and one of the city's most famous landmarks. The castle is situated on the lower slopes of the Cave Hill Country Park and is surrounded by lush greenery and mixed woodland. The castle is open to explore everyday between 9am-6pm, parking and admission is free.

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Kinbane Castle

Highlight • Viewpoint

Stunning views of North Antrim coast, Rathlin Island, and as far as Scotland. Steep but steps with barriers until near the bottom. Some narrow / slippy parts of walking out onto the rocky outcrops but well worth it. Castle is nice. Did it with kids aged 5-8 and it's mostly suitable (so long as you keep a good eye on them) and they enjoyed it.

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Best known for its place as "Winterfell" in Game of Thrones, Castle Ward is an 18th-century National Trust property in Strangford. With two unique styles of classical and gothic, the castle & its estate is located in a beautiful location near the shore of Strangford Lough. Tours are available year round of the castle and estate.

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Carrickfergus Castle

Highlight • Historical Site

Carrickfergus Castle is a well-preserved medieval fortress overlooking Belfast Lough. Built in the 12th century, it stands as a historic icon, showcasing impressive architecture and giving you a glimpse into Ireland's past.

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Antrim Castle Gardens

Highlight • Historical Site

Antrim Castle Gardens are an absolute historical gem. You will find nothing like these 400 year old gardens anywhere else in Northern Ireland.

Walk into the past as you stroll around this magnificent setting, visiting beautiful features such as the Large Parterre, Her Ladyship’s Pleasure Garden and Yew Tree Pond.

Within the heart of the Gardens is a unique visitor experience, the refurbished Clotworthy House. Visit the Garden Heritage Exhibition where you can read about the history of the Gardens and the story of the Massereene family.

It provides a fantastic opportunity to come and learn about garden history how the lives of the key family members intertwine with the development of Antrim town and the surrounding areas.

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Audley's Castle

Highlight • Historical Site

The castle is named after its late 16th-century owners, the Audleys, an Anglo-Norman family who owned land in the area in the 13th century. It was sold, along with the surrounding estate, to the Ward family in 1646.
Audley's Field was used as a filming location in the series "Game of Thrones", the tower was one of the Twin Towers.

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Downhill House Ruins

Highlight • Historical Site

An old dilapidated 18th century mansion close to Mussenden Temple. A mystical place!

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Tips from the Community

Puffin
November 17, 2025, Carrickfergus Castle

Impressive, massive fortress in an ideal waterfront location.

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Puffin
October 31, 2025, Kinbane Castle

Ruins in a beautiful location

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Adie
August 26, 2025, Dunseverick Castle

Only a solitary ruined gate tower remains - a standing testament to the turbulent times experienced at Dunseverick Castle. It's free to visit and open year-round, but take care exploring as there are sheer cliffs on three sides.

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Dunluce Castle in Northern Ireland is an impressive ruin perched on a cliff above the sea. Its dramatic location and rugged rocky landscape lend the castle a special atmosphere. The remains tell a rich history and offer fascinating insights into medieval defensive architecture. The views of the sea and the surrounding nature make a visit an unforgettable experience. Dunluce Castle is a place that combines both history and nature in a striking way.

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Matto
February 11, 2025, Dunluce Castle Ruins

De Burgh's castle was primarily a military fortress, notable for its robust defensive features typical of Norman architecture. The design included impressive walls and strategic positioning to take advantage of the natural defensive advantages of the clifftop location.

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Matto
January 11, 2025, Downhill House Ruins

Once a grand, Italian-inspired home, Downhill House was devastated by fire in May 1851 and almost completely burned down.

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Tom
July 25, 2024, Belfast Castle

Beautiful castle with great hiking tours

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Tom
July 22, 2024, Dunseverick Castle

A beautiful old ruin

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Frequently Asked Questions

Which castles in Northern Ireland offer the most dramatic coastal views?

For breathtaking coastal scenery, visit Dunluce Castle Ruins, perched precariously on a basalt outcropping. Kinbane Castle, situated on a limestone outcrop, also provides rugged, romantic views of the Atlantic. Dunseverick Castle, located on the Causeway Coastal Route, offers historical significance alongside its coastal setting.

Are there family-friendly castles in Northern Ireland with activities for children?

Yes, several castles are great for families. Belfast Castle features beautifully landscaped gardens, including a unique 'Cat Garden' with sculptures that children often enjoy. Castle Ward, known as a *Game of Thrones* filming location, offers tours and an estate to explore. Hillsborough Castle and Gardens also provides extensive grounds for families to wander.

What is the best time of year to visit castles in Northern Ireland?

The best time to visit castles in Northern Ireland is generally during the spring (April-May) and autumn (September-October) when the weather is milder and the landscapes are vibrant. Summer (June-August) offers longer daylight hours, but also sees more tourists. Some castles, like Belfast Castle, are open year-round, making winter visits possible for those who prefer fewer crowds and don't mind cooler temperatures.

Are there well-preserved medieval castles in Northern Ireland that I can explore?

Absolutely. Carrickfergus Castle is a remarkably well-preserved Norman stronghold from 1177, offering a deep dive into medieval life and architecture. Sketrick Castle, a 15th-century tower house, also provides a glimpse into the region's medieval past, though it is largely in ruins.

What kind of outdoor activities can I do near castles in Northern Ireland?

Many castles are situated near excellent outdoor activity areas. For hiking, you can find routes near coastal castles like Dunseverick, which is a starting point for hikes along the Causeway Coastal Route. The Hiking in Northern Ireland guide features trails like the 'Giant's Causeway via The Ampitheatre' and 'Dunseverick to Giant's Causeway'. For those interested in cycling, the Gravel biking in Northern Ireland guide offers routes near various historical sites.

Are there castles in Northern Ireland that were used as filming locations for *Game of Thrones*?

Yes, Northern Ireland is famous for its *Game of Thrones* filming locations. Castle Ward, a National Trust property, is widely recognized as 'Winterfell'. Gosford Castle also served as a location, portraying the House of Tully. Both offer fans a chance to visit iconic scenes from the series.

Can I find castles with extensive gardens to explore in Northern Ireland?

Yes, several castles boast magnificent gardens. Hillsborough Castle and Gardens features 17th-century Anglo-Dutch style canals, ponds, and avenues. Belfast Castle has beautifully landscaped grounds, including its unique 'Cat Garden'. Additionally, Antrim Castle Gardens, though the castle itself is a ruin, offers 400-year-old gardens with various features and a heritage exhibition.

What are the parking options like at popular castles in Northern Ireland?

Parking availability varies by castle. For instance, Belfast Castle offers free parking. Dunluce Castle has dedicated parking facilities, though it can get busy during peak times. For Kinbane Castle, there's a car park, but be prepared for a descent of 140 steps to reach the castle itself. It's always advisable to check specific castle websites for the most current parking information.

Are there castles in Northern Ireland that are still private residences?

Yes, Glenarm Castle in County Antrim is a 17th-century structure that remains a private family home for the McDonnell Earls of Antrim. While the castle itself opens only occasionally for guided tours, its glorious walled garden is accessible to the public year-round, set within an area of outstanding natural beauty.

Which castles offer panoramic views of the surrounding region?

Belfast Castle, perched on Cave Hill, provides panoramic views of Belfast city. Dundrum Castle, situated on a hilltop overlooking Dundrum Bay and the Mourne Mountains, also offers impressive vistas. Many coastal castles, like Dunluce Castle Ruins and Kinbane Castle, are renowned for their sweeping sea views.

Are there any castles in Northern Ireland with unique historical legends or stories?

Yes, many castles are steeped in legend. Dunluce Castle Ruins is famously associated with a legend that its kitchen once fell into the sea during a storm. Dunseverick Castle has historical ties dating back to the 5th century, with legends suggesting Saint Patrick himself visited the fortress. These stories add to the atmospheric experience of visiting these ancient sites.

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