The castle at the centre of this demesne is a shell, gutted by fire in 1990 and never rebuilt, so what you actually come for is the ground around it. A flat 5.5km (3.5-mile) trail loops the estate where the River Finn slides into Upper Lough Erne, free to walk and wheelchair-friendly from end to end. Give it about ninety minutes. Deer are a common sight on the grass, the Finn along the north-eastern edge is a designated Area of Special Scientific Interest, and interpretive panels along the way tell the Saunderson story.
The demesne straddles the border: you can enter from County Fermanagh or from the Cavan side off the N54, and the whole estate sits inside the Cuilcagh Lakelands UNESCO Global Geopark.
The Saunderson family
The O’Reillys of Breffni held this land from the 14th century, but the house you see is Victorian, not medieval. It was built around 1835 and remodelled in 1840 in a Tudor-Gothic style of battlements, turrets and a gatehouse tower, designed by the architect George Sudden. An earlier fortified house on the site was burned by James II’s troops in 1689, and months later a retreating Jacobite column was ambushed nearby and driven into the Finn. Robert Sanderson, a supporter of William of Orange, inherited the estate in 1676.
The family gave Ireland two figures worth knowing. Colonel Edward James Saunderson was a founder of the Ulster Unionist Party. His descendant, Captain Alexander ‘Sandy’ Saunderson, served as a legal adviser at the Nuremberg War Crimes Tribunal after the Second World War. The demesne still holds the family church, with its crypt and graveyard, quiet now and worth the short detour off the trail.
The scout centre
Scouting Ireland bought the estate in 1997 and, after a major EU-funded redevelopment, opened the Castle Saunderson International Scout Centre in August 2012, with President Michael D. Higgins doing the honours. The 34-acre (14 ha) site runs programmes tied to the World Scout Movement’s Messengers of Peace initiative and can take up to 1,000 campers. It’s open to Scouts year-round and to other groups for most of the year, with an indoor hostel, a self-catering kitchen, camping in the broadleaf woodland, and instructor-led kayaking, archery and orienteering. During the Covid-19 outbreak the centre served as a mass testing site for the HSE.
Casual visitors don’t need any of that; the trail and grounds are open to anyone. But the indoor facilities and camping are booking-only, and in summer the place fills with jamborees and youth groups, so it isn’t the spot for solitude in July.
Getting there and nearby
Access is via the Scout Centre entrance off the N54, signed for the castle, with parking beside the castle and at the main entrance. From Dublin, take the M1 to the N3 for Belturbet, then the N54. Public transport is thin: the nearest stop is in Belturbet, with taxis for the last stretch.
The grounds and trail are open through the day and free to walk, but there’s no fixed published timetable and the scout centre’s own bookings take priority, so ring ahead (049 389 1204) if you’re travelling far. The address for mapping apps is Castle Saunderson International Scout Centre, Belturbet, Co. Cavan, H14 X650. For more of the county, see County Cavan; a short drive on, Cavan Burren Park has megalithic tombs and limestone pavements, and the Cavan Adventure Centre runs zip-lining and high-ropes courses.