Overview
The MacGillycuddy’s Reeks form a rugged 20-kilometre spine across the Iveragh Peninsula in County Kerry. This is Ireland’s highest mountain range, home to three summits that breach the 1,000-metre mark: Carrauntoohil (1,038 m), Beenkeragh (1,010 m) and Caher (1,001 m). Between the peaks lie deep glens, narrow ridges and crystal-clear lakes that feed into the Lakes of Killarney below. Because the mountains sit on privately owned, actively farmed land, visitors must respect strict access guidelines. Dogs are not permitted anywhere in the range to protect livestock, and walkers are expected to stay on established paths, close all gates, and avoid disturbing grazing sheep.
Despite these restrictions, the Reeks remain one of the most accessible high-mountain environments in Ireland. The area forms the dramatic backdrop to the Ring of Kerry, offering everything from well-marked summit trails to remote ridge scrambles. On a clear day, the view from the high ground stretches across Killarney National Park, the Gap of Dunloe and out toward the Atlantic.
History & The Name
The name MacGillycuddy honours the Irish clan that historically controlled the territory. The Gaelic name for the range is Na Sléibhte Mhúirne, meaning “the mountains of the Múrnai” (the same clan). In the 18th century, the area was known locally as the “Reeks” (from the Irish ríghe, meaning a ridge or range). The first recorded ascents of Carrauntoohil took place in the 19th century, sparking early mountaineering interest. For decades, access was unregulated, but rising visitor numbers and environmental concerns led to the creation of the MacGillycuddy’s Reeks Mountain Access Forum in 2014. The forum works with landowners, the National Parks and Wildlife Service and local communities to balance sustainable hiking with active agriculture.
Route Options
The Reeks cater to a wide range of abilities, though all routes above the treeline demand proper footwear, navigation skills and weather awareness.
The Devil’s Ladder (Carrauntoohil)
This is the most direct and frequently walked route to Ireland’s highest peak. Starting from Cronin’s Yard car park, the path climbs steadily through pine forest before opening into the wide, heather-covered slopes of Hags Glen. Walkers cross the Gaddagh River via steel bridges and stepping stones before reaching the stone-filled scree slope known as the Devil’s Ladder. The round trip covers roughly 12 km with 859 m of ascent and typically takes four to six hours. The Ladder shows signs of erosion from heavy foot traffic; step carefully and avoid widening the path. A quieter alternative descent follows the Heavenly Gates track back toward the forest.
Stumpa an tSaimh Ridge
For experienced hillwalkers, the Stumpa an tSaimh Ridge offers a more exposed and technically engaging approach. This 11 km, five-hour route scrambles along a narrow limestone arête, passing close to the summit of Beenkeragh before continuing over the Bones and onto Carrauntoohil. The ridge provides intimate views of the granite peaks and demands steady footing, especially in wet or windy conditions. Navigation along the ridge can be tricky in poor visibility, so a compass and map are essential.
The Reeks Ridge Traverse
Often called Ireland’s ultimate day-hike, the traverse links eight of the country’s ten highest peaks. Covering approximately 26 km, it connects Carrauntoohil, Beenkeragh, Caher, Cnoc na Toinne and several others in a continuous ridge walk. This route is best attempted by seasoned mountaineers with strong navigation skills, as it involves sustained exposure, rapid weather shifts and limited escape routes. Most hikers tackle it as a multi-day trek or start early to finish before afternoon cloud cover rolls in.
Quieter Valleys & Loops
Not every visit requires a summit push. The Coomloughra Horseshoe offers a stunning loop that skirts the northern side of the range, passing beneath towering cliffs and offering close-up views of the high peaks without committing to the full ridge. Hags Glen itself is a rewarding destination for a shorter hike, with lush fern-lined paths and reliable river crossings.
Practical Information & Safety
- Access points: Cronin’s Yard (south, near Killarney), Lislebane (north, near Beaufort), and Breanlee (west).
- Parking: Small, unmarked car parks sit at each trailhead, typically holding 20–30 vehicles. Arrive early on weekends, as spaces fill quickly.
- Opening hours: Open daily, weather permitting.
- Admission: Free of charge.
- Dog policy: Strictly prohibited. The mountains are active sheep-farming land, and uncontrolled dogs cause serious harm to livestock.
- Weather & navigation: Mountain conditions change rapidly. Carry a waterproof jacket, insulating layers, a fully charged phone, and a physical map with compass. The Mountain Weather Ireland service provides detailed forecasts for the Reeks.
- Emergency contact: Kerry Mountain Rescue can be reached on 0504 34422. Do not call unless it is a genuine emergency.
- Guided walks: Local operators such as Kerry Climbing offer guided ascents, which are highly recommended for first-time visitors or anyone attempting the exposed ridges.
Getting There & Where to Stay
The main trailheads are accessed via the N71 road. Cronin’s Yard is just south of Killarney town, while Lislebane sits north of Beaufort. Both villages provide B&Bs, pubs and self-catering options. Killarney offers a wider range of accommodation, restaurants and transport links, including regular bus services from Cork and Limerick. Beaufort is quieter and closer to the northern trailheads, making it a practical base for the Coomloughra Horseshoe or ridge walks.
Muckross House & Gardens, located within Killarney National Park, has a large visitor centre and car park. While not a trailhead, it is a useful stop for picking up detailed topographic maps, checking recent trail conditions with park rangers, and grabbing supplies before heading into the mountains.
Plan your ascent for the morning when visibility is typically clearest, and always leave your intended route and return time with someone at your accommodation. The Reeks reward careful preparation with unspoiled high-ground scenery that few other places in Ireland can match.