Killyleagh, Cill Ó Laoch, Co. Down

Cill Ó Laoch · Co. Down

A fairytale castle still lived in, and a harbour that still works underneath it.

Killyleagh is a Strangford Lough village built around a castle that is still somebody's house. The Hamilton family came in the early 17th century and they are still here, four hundred years and twelve generations later, with two conical towers at the top of the High Street and a pair of self-catering apartments built into the bawn wall. You can stand at the castle gates. You cannot, on a normal Wednesday, go in. That is part of the deal.

It is a working village underneath the fairytale. The harbour has boats in it. The Yacht Club has four hundred members and a serious racing calendar. The deli on the High Street - Picnic - is one of the best places to eat in this corner of Down, and the Dufferin Arms a hundred yards uphill has been pouring pints in two tiny snugs for longer than anyone remembers. Add the Sir Hans Sloane Centre and Delamont Country Park five minutes down the road, and you have a half-day that is not pretending to be anything it isn't.

The trick is knowing the limits. The castle does not open to the public. The Hans Sloane Chocolate Festival happens every other September and not in between. The Smugglers Table - the destination restaurant - closed at the end of 2025. What is left is honest: a deli, a pub, a harbour, a stone, and the strangest collector's story Ireland produced in the eighteenth century. Come for an afternoon. Stay for a night if the towers are free.

Population

~2,790

Pubs

2and counting

Walk score

High Street, castle gates and harbour in twenty minutes

Founded

Norman fort c. 1180; Hamilton castle since 1625

Coords

54.4000° N, 5.6500° W

01 / 09

At a glance.

Three things every local will eventually mention. Read these and you've already understood more than most day-trippers do.

01 The castle

Hamiltons have lived here since 1625.

Two conical towers and a curtain wall sit at the top of the High Street. It is believed to be one of the oldest inhabited castles in Ireland - parts back to 1180, Hamilton family since the early 17th century, never sold. It is also a private home, which is why you can't go in.

Stories & lore → 02 The lough

Strangford from the working side.

Killyleagh sits on the west shore of Strangford Lough, looking out at islands and oyster trestles. The harbour is a real one - yachts, day-boats, the Yacht Club's pontoon. Walk down past the gates and the whole lough opens up.

Walks & outings → 03 Hans Sloane

The man who founded the British Museum.

Born on Frederick Street in 1660. Physician to three monarchs, collector of 71,000 objects, the man who brought drinking chocolate to London. His bequest founded the British Museum, the Natural History Museum and the British Library. Sloane Square is named after him. The Sir Hans Sloane Centre on High Street tells the rest.

Stories & lore →

02 / 09

The pubs.

None of these are themed Irish pubs, because they don't need to be. A few that earn the trip:

Dufferin Arms

Two tiny snugs

Pub & restaurant, 35 High Street

Top of the High Street, castle gates a hundred yards uphill, lough a hundred yards down. The public bar on the right is splendidly basic and the two snugs behind it sit on opposite sides of a corridor, both about the size of a wardrobe. Lobster and langoustines on the menu in season; pub food the rest of the time.

Picnic Delicatessen

Day cafe, Saturday wine bar

Deli & cafe & late wine bar, 47 High Street

Open Tuesday to Friday 7 to 7, Saturday 10 to midnight, Sunday 10 to 4. The Saturday late shift is the closest thing the village has to a second pub - wine, deli plates, the room full of locals. The poached eggs and sausage rolls are the day-job. Both are the reason.

03 / 09

Where to eat.

Place	Type	€	Local note
Picnic Delicatessen	Deli & cafe	€€	47 High Street. Hearty deli food - poached-egg stacks, homemade sausage rolls, salads, a French toast that people drive over from Belfast for. Outdoor seating. The Saturday evening menu pivots to wine and small plates and is the busiest room in Killyleagh.
Cafe Velo	Cycling cafe	€	2a Hamilton House, near the castle gates. Cyclists and walkers come off the lough road for coffee, paninis, soda-bread breakfasts. Sit-in, takeaway, day-only - Monday to Saturday, 9 to 3. The festive panini in winter is locally famous.
Dufferin Arms	Pub food	€€	35 High Street. Fresh lobster and langoustines off the lough in season, beef and lamb the rest of the year. Lunch and dinner seven days. Sit in the snug.
What's gone	Note	-	The Smugglers Table on the Dibney River - the village's destination restaurant for a decade - closed at the end of 2025. If a guidebook still lists it, the guidebook is out of date.

04 / 09

Where to sleep.

Place	Type	Local note
Killyleagh Castle Towers	Self-catering in the castle wall	Two apartments built into the 1620s bawn wall of the castle itself, sleeping up to fifteen across both. Tennis court, swimming pool, roof patio. The closest the public ever gets to living inside the place. Book months ahead.
Dufferin Coaching Inn	Guesthouse	Historic building on the High Street, rooms above the trading floor of the old town. Walking distance to everything that's open, and a short stroll to the harbour.
Harbour-side apartments	Self-catering	A handful of one- and two-bed apartments looking out over the harbour and lough - book through Airbnb or Booking. The water view at six in the morning is the reason to take the harbour side over the High Street side.

05 / 09

Stories & lore.

The reason to come back. The things every local will eventually tell you about, usually after the second pint.

The collector

Hans Sloane

Born in a house on Frederick Street in 1660. Trained as a physician in London and Paris, sailed to Jamaica as doctor to the new governor in 1687, came home with eight hundred plant specimens and a recipe for cocoa mixed with milk and sugar. Spent the next sixty years collecting everything - manuscripts, coins, dried plants, antiquities, oddities - until he died in 1753 with 71,000 objects. His will bequeathed the lot to the nation. Parliament passed an act and the British Museum opened in 1759. The Natural History Museum and the British Library were carved out later. Sloane Square in Chelsea is named after him because he owned the land. The drinking chocolate, eventually, became Cadbury.

Four hundred years in one house

The Hamiltons

James Hamilton, a Scot, came over with the plantations under James I and got the country from Killyleagh to Bangor. He moved into the castle in 1625 and built the courtyard walls. The family have been there ever since - through the 1649 Cromwellian siege when General Monk sailed gunboats up the lough and blew the gatehouse, through the rebuild of 1666, through the Loire-Valley remodel by Sir Charles Lanyon in the 1850s, and through to the present occupant, Gawn Rowan Hamilton, who lives there now with his family. That is twelve generations in the same building. Almost no other castle in these islands can say it.

The mill village a mile inland

Shrigley

A mile north-west of Killyleagh is Shrigley, the satellite village that grew up around a six-storey cotton mill built by John Martin in 1824. By 1836 it had more power looms than any factory in Ireland. The mill closed on Hallowe'en night 1930 and the village starved for nine years until Jewish refugee families opened a tannery during the Second World War. The Victorian workers' cottages were demolished in the 1968 redevelopment. There is a clock tower in Martin's memory, put up in 1871 by public subscription. It is still there.

The tallest megalith in these islands

The Strangford Stone

In Delamont Country Park, a mile and a half south of the village, stands a single piece of Mourne granite twelve and a half metres tall - the tallest megalith in the British Isles. It was quarried as a 200-tonne block in 1999, trimmed to 47 tonnes, and pulled into place on the 26th of June that year by a thousand young people aged between fourteen and twenty. A flaw in the granite means it is technically two pieces, joined with three stainless steel dowels. It is the strangest thing on the Strangford shore and it is only twenty-six years old.

06 / 09

Things to do outside.

Wear waterproofs. Bring a sandwich. Tell someone where you're going if it's the mountain.

High Street and harbour loop Castle gates at the top, harbour at the bottom, deli and pub in between. The whole village in twenty-five minutes including the slow look at the towers. Do it before breakfast.

1.5 kmdistance

25 mintime

Delamont Country Park - Long Walk A mile and a half south on the A22. Five waymarked trails through 200 acres on the lough shore - the Long Walk is the full circuit through woodland, coast and parkland. The Strangford Stone is on it. Mourne views the whole way.

7 km loopdistance

2 hourstime

Delamont - Strangford Walk The short shore-side loop at Delamont, on the lough itself, with the Mournes lined up across the water. Wheelchair-accessible and the views do all the work.

2 kmdistance

40 mintime

Killyleagh Yacht Club pontoon Out from the harbour to the Yacht Club at Cuan Beach. Cruisers on moorings, the Squib fleet in season, and a view back at the village with the castle towers above the rooftops. Best at slack water.

500 m one waydistance

15 mintime

07 / 09

When to go.

There is no bad time. There are different times.

Spring

Mar-May

Lough comes back to life, sailing season opens at the Yacht Club, Delamont fills with wildflowers. The light off the water in late April is the reason.

◉ Go

Summer

Jun-Aug

Long evenings, the harbour busy, the regatta calendar in full swing. Picnic's Saturday night runs late and full. Book accommodation; there isn't much of it.

◉ Go

Autumn

Sep-Oct

September is the Hans Sloane Chocolate Festival weekend in even-numbered years - the village reorganises itself around the castle gates for two days. The rest of autumn is quiet, storm-blown and excellent.

◉ Go

Winter

Nov-Feb

Half the day-trade slows. The Dufferin keeps the fire going and Picnic keeps the coffee on. The lough in a January gale is its own argument for coming.

◐ Mind yourself

08 / 09

What to skip.

Honestly? Don't bother.

If a local was sitting beside you, this is the bit where they'd lean in.

Trying to tour Killyleagh Castle

It's a private family home. The gates are usually open so you can stand in the courtyard and look at the towers, but there are no tours. The gate lodges and the wall towers are the only bits you can sleep in, and those need to be booked. Admire it from outside and move on.

Showing up for the Chocolate Festival in an odd year

It's biennial - even years only, one weekend in September. In odd years the village is itself, which is also fine, but the chocolate stalls and the castle-gate concerts aren't there.

The Smugglers Table

Closed at the end of 2025. If a list of 'best restaurants on Strangford' still has it, the list is out of date. Picnic on a Saturday night is now the room to be in.

Driving the A22 looking for the Strangford Stone

It's not on the road. Park at Delamont Country Park, pay the car fee, walk in fifteen minutes. The signs from the road don't tell you that.