The island of Ireland has castles on almost every headland and river crossing, from Norman strongholds to clifftop ruins and grand country houses. These eleven are the best for a weekend, spread across Ireland and Northern Ireland and labelled by jurisdiction so you can plan your route. We’ve checked opening seasons and closures, as several change this winter.
1. Blarney Castle, Ireland
Just outside Cork, Blarney is famous for the Stone of Eloquence at the top of its tower. Climb the steps, lean back and kiss it for the gift of the gab. The gardens are as good as the castle, with a Poison Garden, a long rose pergola, a rock close and lake walks. It opens all year except 24 and 25 December, and there are no timed slots, so you can buy tickets on arrival.
Best for: First-timers and garden lovers.
2. Rock of Cashel, Ireland
A cluster of medieval buildings on a limestone outcrop above the Tipperary plains, the Rock of Cashel is one of Ireland’s most striking sights. From 16 October to 16 March it opens daily from 9am to 4.30pm, with longer hours in summer. Cormac’s Chapel can only be seen on a guided tour, and those tickets are sold on site in limited numbers. The site is very exposed and can close at short notice in bad weather.
Best for: History lovers and photographers.
Tip: Arrive at opening time at the Rock of Cashel to secure a place on a Cormac’s Chapel tour before they sell out.
3. Cahir Castle, Ireland
A short drive from Cashel, Cahir is one of Ireland’s best-preserved castles, set on a rocky island in the River Suir. It opens all year with seasonal hours, and closes from 24 to 30 December. Combine it with Cashel for an easy Tipperary castle day.
Best for: A classic, intact medieval fortress.
4. Kilkenny Castle, Ireland
Kilkenny Castle overlooks the River Nore in one of Ireland’s most attractive medieval towns, with wide parkland behind it. It is open all year, but it closes for filming from 1pm on Monday 2 November until Thursday 5 November 2026, when the parkland stays open. Buy tickets only through the castle’s official booking site, as resale tickets aren’t valid.
Best for: A weekend combining a castle with a lively small city.
5. Trim Castle, Ireland
Trim, in County Meath, is the largest Anglo-Norman fortification in Ireland. Its huge 20-sided keep took Hugh de Lacy and his successors 30 years to build. Note the timing: Trim Castle closes for works from 1 November 2026 to 1 April 2027. In October it opens daily from 9am to 4pm, and the castle grounds are free to enter.
Best for: Norman history, within easy reach of Dublin.
6. Malahide Castle, Ireland
On Dublin’s northern coast, Malahide pairs a castle with extensive parkland and a walled garden of more than 5,000 plant species, many collected by Lord Milo Talbot. It’s an easy half-day from the city. Check the castle’s website for current tour times and booking.
Best for: A Dublin day trip with gardens.
7. Ashford Castle, Ireland
On the shore of Lough Corrib at Cong in County Mayo, Ashford is now a five-star castle hotel. It is the place to splurge on a stay, or to book afternoon tea, dinner or a spa treatment if you aren’t staying. The surrounding scenery of lakes and woods is the west of Ireland at its most romantic.
Best for: A luxury castle stay.
8. Dunguaire Castle, Ireland
This 16th-century tower house stands on the shore of Galway Bay at Kinvara and is one of the most photographed castles in the west. Note that Dunguaire has been closed to the public since 2023, and no reopening date has been set. It is still worth a stop to see it from the shoreline on a drive between Galway and the Burren.
Best for: Photographers on a west coast road trip.
9. Dunluce Castle, Northern Ireland
Dunluce’s ruins cling to the cliffs of the north Antrim coast, with the sea crashing below. The MacQuillans built it around 1500, and the MacDonnells seized it in the 1550s. Legend says its kitchens fell into the sea in a storm in 1639. The site may close in extreme weather, so check before you go, and combine it with the Giant’s Causeway nearby.
Best for: Dramatic ruins on a Causeway Coast trip.
10. Carrickfergus Castle, Northern Ireland
Carrickfergus, on the shore of Belfast Lough, is one of the best-preserved Norman castles on the island. It has been through a long conservation programme, including a project to re-roof the great tower in oak. Public realm works around the site may close some areas. Check opening times with the castle before you travel.
Best for: An easy castle visit from Belfast.
11. Enniskillen Castle, Northern Ireland
Set beside the River Erne in Fermanagh’s lakeland, Enniskillen Castle houses the Fermanagh County Museum and the Inniskillings Museum. It opens Monday to Friday from 9.30am and on Saturdays from 11am, and on Sundays from June to September only. It’s a good base for exploring the Fermanagh lakes.
Best for: Museums and a lakeland weekend.
How to choose
- First trip, from Cork or Shannon: Blarney, then Cashel and Cahir in a single day.
- From Dublin: Malahide for an easy half-day, or Kilkenny for a full weekend. Trim is closed until April 2027.
- Northern Ireland: Dunluce with the Causeway Coast, Carrickfergus from Belfast, or Enniskillen in the lakelands.
- For a splurge: stay at Ashford Castle.
Planning the wider trip? See the best things to do in Dublin, our roundup of the best castles in Europe and Leeds Castle in Kent. Families can find the Giant’s Causeway in the best things to do with kids in the UK.
FAQ
What is the most famous castle in Ireland?
Blarney Castle is the best known, thanks to the Blarney Stone. The Rock of Cashel and Kilkenny Castle are close behind.
Can you kiss the Blarney Stone all year?
Yes. Blarney Castle opens all year except 24 and 25 December. There are no timed slots, though queues for the stone build in summer.
Which castles in Ireland are closed this winter?
Trim Castle closes for works from 1 November 2026 to 1 April 2027. Kilkenny Castle closes from 2 to 5 November 2026 for filming. Dunguaire Castle has been closed to the public since 2023.
What is the best castle in Northern Ireland?
Dunluce Castle on the Antrim coast is the most dramatic. Carrickfergus is the best-preserved Norman castle and is easy to reach from Belfast.
Can you stay in a castle in Ireland?
Yes. Ashford Castle in County Mayo is a five-star hotel on the shore of Lough Corrib.
