Classiebawn Castle – Mountbatten's retreat
Tourism Ireland by Richard Watson

Classiebawn Castle – Mountbatten's retreat

📍 Mullaghmore Peninsula, Sligo

🏛️ Attraction
🕒 Opening hours
Closed to visitors
🎟️ Admission
Castle closed to visitors. The public headland walk is free.
🅿️ Parking
Use marked parking on Mullaghmore seafront and check local signs.

Last updated: 5 November 2026

Overview

You can’t get inside Classiebawn Castle, and that’s the first thing to know before you drive out. The whole appeal is the silhouette: a sandstone pile on the Mullaghmore headland, turrets and a conical-roofed tower set against the flat top of Ben Bulben and the open Atlantic. It’s a private residence, closed to the public, and the castle and its grounds are not open to walk around. What you do instead is see it from the public route on the Mullaghmore Head walk, and that turns out to be enough.

Classiebawn’s turrets come into view as the walk turns inland, with Ben Bulben behind them. Start on the seafront in Mullaghmore. The castle shifts against the mountain as you go, and the light does the rest. Early morning or late afternoon is when the low sun catches the sandstone; come at midday under flat grey skies and you’ll wonder what the fuss is about.

Classiebawn Castle on a green headland above the Atlantic in County Sligo
Classiebawn Castle, Mullaghmore, Co Sligo Courtesy Alison Crummy

History

The land here was confiscated from the O’Connor Sligo family by the English Parliament in the 17th century and granted to Sir John Temple, Master of the Rolls in Ireland. It passed down to Henry John Temple, 3rd Viscount Palmerston – twice British prime minister – who decided to build a country retreat on the peninsula. The first attempt was on nearby Dernish Island, abandoned when the tides made a causeway impossible, and the work moved to the present headland.

Palmerston commissioned the Dublin architect James Rawson Carroll to design the house in the Scottish-Baronial style, and the National Inventory of Architectural Heritage dates the building to 1874. Look for the conical tower and the smaller turrets that give the house its outline. Palmerston died in 1865, before it was finished; his stepson, William Cowper-Temple, is said to have completed it.

It later became the Irish summer home of Lord Louis Mountbatten and his wife Edwina, who used it as a seasonal base. In August 1979 an IRA bomb on Mountbatten’s fishing boat just off the Mullaghmore coast killed him and three others. The murder put the quiet peninsula on front pages worldwide. The castle remains in private hands and is not open to visitors.

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Viewing the castle and the walk

Because the property is private, you can’t reach the building or its immediate grounds. Use the Mullaghmore Coastal Walk map and park on the village seafront where signs permit it. Head west from the village with the sea on your right. Much of the circuit shares a public road with traffic, so leave room for passing vehicles and stay back from exposed cliff edges. Wear sturdy footwear, as surfaces can be uneven.

One honest warning. The road around the head is narrow, and Mullaghmore is subject to local parking controls. If you are driving, avoid stopping in the carriageway or at the castle gate, and don’t block a gateway.

The fishing harbour that Palmerston is said to have built gives you a shorter stop if the headland is too exposed. Mullaghmore is also known for big-wave surfing when the Atlantic swell is right, so on a big-sea day the watching is as much about the water as the castle. To make a half-day of it, link the visit to the Gleniff Horseshoe drive through the glacial valley, or for a longer walk away from road traffic try Coillte’s Ben Bulben forest trails, which include the 5.5km loop at Gortarowey.

Practical information

Classiebawn is closed to visitors and run as a private residence: no tickets and no opening hours. The public headland walk is free. Park on Mullaghmore seafront and check local signs for any controls.

The headland takes the full force of the prevailing westerlies, so it can feel far colder than inland. Pack windproof layers between October and April, and bring a cloth or dry bag for your camera, as sea mist and spray are common. For the strongest photo, come within an hour of sunset on a clear evening, when the sandstone warms up and the road has emptied out.