Booley and Butter, Mountain Ways Ireland, Slieve Gullion, Co. Armagh - Embrace a Giant Spirit
Booley and Butter, Mountain Ways Ireland, Slieve Gullion, Co. Armagh - Embrace a Giant Spirit Courtesy of Tourism Northern Ireland

Slieve Gullin – Ancient Tomb and Sacred Lake

📍 Slieve Gullion, Armagh

🏛️ Attraction

Last updated: 28 April 2026

Overview

Slieve Gullion Forest
© Tourism Ireland

Cailleach a Bheara’s House, locally called Calliagh Beara’s House, sits atop Slieve Gullion (573 m) in County Armagh. It is the highest surviving passage tomb in Ireland and the United Kingdom and forms the summit point of the Ring of Gullion Area of Outstanding Natural Beauty (AONB) and the Mourne Gullion Strangford Geopark. A short walk north‑west from the cairn lies Lough of Calliagh Bhirra, a shallow, mirror‑like lake that frames the same sweeping panoramas of the Mourne Mountains, Carlingford Lough and the Atlantic coastline.


History & Legend

Slieve Gullion Mountain
© Tourism Ireland

Both the tomb and the lake belong to a Bronze‑Age landscape that has been reshaped by myth. The cairn dates to the Bronze Age, though its exact construction date is unknown. In 1789 locals forced the stone lid open, hoping to find the legendary hag herself; only a few human bones were recovered, cementing the link to the Cailleach Bheara, the winter goddess of the Beara Peninsula.

Irish folklore tells how the giant warrior Fionn mac Cumhaill (Finn McCool) climbed Slieve Gullion, rescued a golden ring from the lake’s “bottomless” waters, and was tricked by the Cailleach into ageing. She later restored his youth, leaving his hair forever white – a detail still recounted by guides at the stone shelter near the lake. The lake’s name, Calliagh Bhirra (“the hag’s lake”), reinforces its mythic role; locals claim that anyone who bathes in its waters will have their hair turn white for life.

The tomb itself is a South Cairn – a large burial cairn with a side passage leading to a small chamber. A natural skylight in the roof lets daylight flood the interior, so visitors never need a torch when the site is open.


Historical Excavations & Recent Conservation

The passage tomb was first opened by locals in 1789, yielding only a few human bones. A more systematic excavation took place in 1961 when a team of thirty students from Queen’s University Belfast camped on the summit for five weeks. They uncovered two small stone cists in the North Cairn, a fragment of early Bronze‑Age pottery and confirmed the South Cairn’s age as early as 3500 BC. During the 1940s, American soldiers training for D‑Day dug fox‑holes into both cairns, leaving brass cartridge cases among the ancient stones.

In the 2010s, volunteer groups, coordinated by the Ring of Gullion Landscape Partnership, have been restoring displaced stones under archaeological supervision, helping to protect the monuments from wartime damage and modern foot traffic.


North Cairn – A Bronze‑Age Burial

Just north‑west of the main passage tomb lies the North Cairn, a modest round cairn dating to c. 2300–1950 BC. It contains two stone cists; one held cremated remains of an adult together with a characteristic tripartite food‑vessel. Unlike the South Cairn, the North Cairn has no kerb stones and is built of locally sourced slabs wedged into natural crevices – a design that helped it withstand the summit’s fierce winds. The cairn is a Scheduled Monument and can be admired from the trail, though its interior is not open to the public.


Geology & Landscape

Slieve Gullion is the eroded core of an ancient volcano that last erupted over 60 million years ago during the Paleogene period. The mountain’s distinctive ring dyke gives the surrounding landscape its name – the Ring of Gullion – and is a rare geological feature of international significance. It was the first ring‑dyke to be mapped in the world and remains a focal point of the Mourne Gullion Strangford Geopark, making the area a natural classroom for geology enthusiasts.


Wildlife & Conservation

The summit and the surrounding forest park lie within a Special Area of Conservation and an Environmentally Sensitive Area. Red squirrels, which are scarce elsewhere in Northern Ireland, are regularly spotted in the forest, alongside typical upland flora such as heather, gorse and alpine‑type grasses. Visitors are asked to respect the habitat and follow Leave‑No‑Trace principles.


What to See & Do

  • Cairn Chamber – When the tomb is open, crawl through the side passage into the burial chamber and watch the skylight create a dramatic shaft of light across the ancient stones. The interior is only accessible during official opening periods (currently closed for essential maintenance – see Practical Information).
  • Summit Views – From the cairn’s rim and from the lake’s edge you can see the Ring of Gullion, Lough Gullion reservoir, the Mourne range, Carlingford Lough and, on clear days, the distant Atlantic coast. Six counties are visible on a fine day.
  • Lough of Calliagh Bhirra – Follow the well‑marked plateau track about 800 m north‑west from the cairn to the lake. Swimming is not permitted; the peaty waters are best admired from the shore.
  • Fionn’s Giant Adventure Trail – In the adjacent Slieve Gullion Forest Park, a family‑friendly story trail retells the Finn‑Cailleach legend with interactive stations and sculpted figures.
  • The Giant’s Lair – An ambitious arts project and adventure playground that weaves fairy‑tale sculptures, zip‑lines and climbing frames into the woodland, celebrating local myths.
  • Slieve Gullion Fairy Trail – A whimsical walk dotted with fairy houses and interpretive panels, fully accessible for wheelchair users.
  • Scenic Forest Drive – A 10 km one‑way drive up the mountain with pull‑out viewpoints, picnic spots and information boards about geology, archaeology and wildlife.
  • Summit Loop Walk – A 13.5 km (8 mi) loop taking roughly 4½ hours, climbing to the cairn and returning via forest trails. The route is way‑marked but can be boggy; sturdy boots are essential.
  • Camping – Designated camping areas exist within the forest park for those who wish an overnight stay under the stars.
  • North Cairn – A Bronze‑Age burial cairn just beyond the lake; viewable from the trail.
  • Nearby Cairns – The South Cairn (Cailleach a Bheara’s House) and the North Cairn can both be admired; a short walk also leads to Ballykeel Dolmen, a well‑preserved portal tomb offering further insight into the region’s prehistoric landscape.
  • Visitor Centre Café – The Synge & Byrne café at the forest‑park courtyard serves hot meals, coffee and local treats – a convenient stop after a hike.

Practical Information

ItemDetails
Opening hoursThe surrounding forest park is open dawn to dusk year‑round and free to enter. The summit cairn and passage tomb are seasonally open and interior access is currently closed for essential maintenance (expected to reopen later in 2026). Check the official website for the latest schedule before you travel.
AdmissionFree entry when open.
AccessFrom the village of Bessbrook follow sign‑posted road to the Slieve Gullion Forest Park car park. The park is reachable via the A28 near Newry.
ParkingFree parking at the forest‑park car park (capacity limited). A modest £5 fee may be charged during peak season.
Recommended gearSturdy walking shoes, waterproof jacket, water, and a headlamp (for the interior of the cairn when open).
FacilitiesPicnic tables, toilets and the Synge & Byrne café at the forest‑park visitor centre; no facilities at the summit.
Best time to visitEarly morning for sunrise light on the skylight and lake; summer for heather and gorse colour. Autumn offers crisp air and clearer views.
Public transportNo regular bus or train service reaches the summit directly. The nearest town with bus connections is Newry; a taxi or private car is required for the final leg to the forest‑park car park.
AccessibilityForest‑park trails, the Fairy Trail and the Giant’s Lair are wheelchair‑friendly. The summit walk is not suitable for wheelchairs.
WeatherConditions change rapidly; dress in layers, bring waterproofs and check the forecast. Cloud can obscure the panoramic views, especially in winter.

How to Get There

Slieve Gullion Forest Park is about 30 minutes south of Armagh city and 1 hour 15 minutes from Belfast via the A1 and A28. The main car park is sign‑posted off the A28 near Newry. There is no public transport to the park – a car is essential.


Nearby Attractions

  • Dromintee – Gateway village to the Ring of Gullion, with craft shops and a traditional pub.
  • Armagh City – Ireland’s ecclesiastical capital, home to two cathedrals and historic sites, about 20 km north.
  • Navan Fort – An Iron Age royal site a short drive north, offering a visitor centre with interactive displays.
  • Newry – The nearest town with a full range of accommodation, restaurants and transport links.
  • Killeavy Castle Estate – Luxury accommodation at the foot of Slieve Gullion for those seeking a spa‑break.

FAQs

  • Can I swim in the lake? No, swimming is prohibited; the lake is considered a sacred site.
  • Is the summit wheelchair accessible? No, but the forest‑park trails and Fairy Trail are.
  • How long does the summit walk take? About 2–4 hours for the 10 km round‑trip; the full loop is 13.5 km and takes 4–5 hours.
  • Are dogs allowed? Dogs are welcome on the forest trails but must be kept on a lead near the cairn and lake.
  • When is the best time for photography? Early sunrise or late afternoon for the skylight effect; clear days in summer give the widest vistas.