6 Best Castles in Northern Ireland

Northern Ireland is home to some of the most breathtaking castles in the world. Each one tells a story—of medieval battles, noble families, and centuries of history. If you love exploring places that transport you back in time, then this list of the best castles in Northern Ireland is for you. From dramatic cliffside ruins to grand estates, I’ve personally explored these places and gathered all the details you need—from history to tips on making the most of your visit.

1. Dunluce Castle:

If you want a castle with a dramatic setting, Dunluce Castle in County Antrim is unbeatable. Perched on a rugged cliff overlooking the Atlantic Ocean, this medieval fortress is full of mystery and legend. Built in the 13th century, it was once the stronghold of the MacDonnell clan.

There’s an eerie story about part of the castle’s kitchen collapsing into the sea during a storm, taking several servants with it. Locals even whisper about ghostly sightings, making this one of the most atmospheric castles in Northern Ireland.

Getting There:

Located just 60 miles from Belfast.
Drive via the M2 and A26 towards Portrush.
Parking is available near the site.

What to Expect:

Stunning ocean views.
Ruins of towers, walls, and courtyards to explore.
A visitor center detailing the castle’s history.
Wear sturdy shoes—it can be windy and the terrain is uneven!

2. Carrickfergus Castle:

Built in 1177 by John de Courcy, Carrickfergus Castle has withstood sieges, battles, and invasions for over 800 years. It’s one of the best-preserved castles in Ireland, and when you step inside, you’ll feel like you’ve traveled back in time.

Unlike the ruined castles, this one still has its thick stone walls, towers, and even old cannons pointing towards Belfast Lough. Whether you’re a history buff or just looking for a cool medieval adventure, Carrickfergus Castle is worth the visit.

Getting There:

Just 11 miles from Belfast.
Drive along the A2 coastal road.
Regular trains run from Belfast to Carrickfergus.

What to Expect:

Fully intact castle walls and towers.
Interactive exhibits on medieval life.
Amazing views from the battlements.
Great for families—kids love the medieval armor displays!

3. Belfast Castle:

Located on the slopes of Cave Hill, Belfast Castle isn’t your typical medieval fortress—it’s a stunning Victorian mansion that feels straight out of a fairy tale. The current castle was built in the 19th century, but the original Belfast Castle dates back to the 12th century.

Aside from its grandeur, one of the coolest things about this castle is the “Nine Cats” legend. There are nine cat sculptures hidden around the gardens, and it’s said that good fortune will come to those who find them all.

Getting There:

A short 10-minute drive from Belfast city center.
Take a bus to Cave Hill Country Park.
Free parking is available.

What to Expect:

Stunning views over Belfast and Belfast Lough.
Beautiful landscaped gardens with hidden cat statues.
A cozy café and a visitor center.
Cave Hill hiking trails nearby for an adventurous detour.

4. Castle Ward

If you’re a “Game of Thrones” fan, you cannot miss Castle Ward! This 18th-century estate overlooking Strangford Lough is famous for being the filming location of Winterfell.

What’s unique about Castle Ward is its mix of architectural styles—one side of the mansion is Gothic, while the other is Palladian. It’s like two different worlds in one place!

Getting There:

Located about 25 miles south of Belfast.
Drive via the A24 and A25.
Plenty of on-site parking available.

What to Expect:

“Game of Thrones” tours and archery experiences.
Walking and cycling trails through the estate.
Beautiful gardens and a historic mansion to explore.
A peaceful retreat by the water—great for picnics!

5. Dunseverick Castle:

Dunseverick Castle might be in ruins, but its location is absolutely breathtaking. Sitting on a headland along the Causeway Coastal Route, this castle was once an ancient royal site dating back to the time of Saint Patrick.

While little remains of the original structure, the rugged landscape and ocean views make it worth a visit. If you love hiking, this is a fantastic stop along the Giant’s Causeway walking trail.

Getting There:

Located near the Giant’s Causeway, about 70 miles from Belfast.
Follow the A2 along the Causeway Coastal Route.
Small parking area near the castle.

What to Expect:

Spectacular coastal scenery.
A quiet, off-the-beaten-path experience.
Ideal for photography and nature lovers.
Steep terrain—be careful when exploring!

Kinbane Castle – A Secluded Beauty

If you love hidden gems, Kinbane Castle is a must-visit. This 16th-century ruin sits on a narrow limestone headland with jaw-dropping views of the sea. It’s a bit of a climb to get down to it, but trust me—it’s worth every step.

Unlike the more famous castles, Kinbane is peaceful and rarely crowded. You can soak in the sound of the waves, the fresh sea air, and the sense of history all around you.

Getting There:

Near Ballycastle, about 65 miles from Belfast.
Drive along the A2 coastal road.
Small car park at the trailhead.

What to Expect:

A steep walk down to the castle.
Gorgeous ocean views and wild cliffs.
A tranquil, almost magical atmosphere.
Great for photographers and adventure seekers!

Final Thoughts

There are so many castles around here, each with its own vibe. Some sit on rugged cliffs, others are hidden gems, and a few still stand tall with all their medieval glory. It’s a mix of history, adventure, and jaw-dropping views. If you haven’t explored them yet, what are you waiting for? Pick a spot, grab your camera, and take in the magic of these epic places.