The MacGillycuddy's Reeks are unlike any other mountains in Ireland. Where most Irish ranges are broad, rounded and relatively gentle, the Reeks are narrow, rocky and genuinely alpine in character — with knife-edge ridges, steep corries, hidden loughs and the kind of exposure that demands respect. They rise abruptly from the National Park west of Killarney, forming the dramatic skyline that defines the view from the town and from the lakes.
MacGillycuddy's Reeks — at a glance
- Highest peak Carrauntoohil — 1,038m (Ireland's highest mountain)
- Peaks over 900m Nine, including the Coomloughra Horseshoe
- Range length Approximately 19km west to east
- Main access Cronin's Yard, Beaufort — 15km from Killarney
- Named after The MacGillycuddy family, Gaelic lords of the area
Carrauntoohil
At 1,038 metres, Carrauntoohil is the highest point in Ireland. It sits at the centre of the Reeks, flanked by the second and third highest summits — Beenkeragh and Caher — with which it forms the Coomloughra Horseshoe, widely regarded as the finest ridge walk in Ireland. The summit is marked by a large metal cross erected in 1976 and visible for miles on a clear day.
Despite its status, Carrauntoohil is accessible to fit hillwalkers with appropriate experience and equipment. It is not a technical climb — no ropes or specialist gear are required on the standard routes — but it is a serious mountain that demands proper preparation, navigation skills and respect for rapidly changing weather.
Important: Carrauntoohil is a serious mountain. Weather on the summit can change within minutes — mist, wind and rain are possible in any season. Proper waterproof clothing, sturdy boots, a map and compass, and the ability to navigate in poor visibility are essential. Do not attempt the summit in poor conditions without experience.
The Coomloughra Horseshoe — Carrauntoohil, Beenkeragh and Caher in a single ridge walk — is widely regarded as the finest day's hillwalking in Ireland.
Main routes to the summit
Devil's Ladder
The most popular route — a steep gully ascent from Cronin's Yard via Hag's Glen. Heavily eroded but well-trodden. The standard route for first-timers.
Brother O'Shea's Gully
A steeper, quieter alternative to the Devil's Ladder — less eroded and more rewarding, but requires more confident navigation.
Coomloughra Horseshoe
The full ridge traverse of Carrauntoohil, Beenkeragh and Caher — Ireland's finest mountain day. Requires experience, good weather and a full day.
Guided Ascent
Several guiding companies in Killarney offer guided ascents of Carrauntoohil — the safest option for those without mountain experience.
Practical information
Main Trailhead
Cronin's Yard, Beaufort — 15km from Killarney on the R562. Car park with small fee
What to Bring
Waterproof jacket and trousers, sturdy boots, map and compass, food and water, first aid kit, fully charged phone
Weather
Check Met Éireann mountain forecast before setting out — conditions change rapidly. Do not summit in mist without navigation experience
Guided Options
Several Killarney-based guiding companies offer year-round guided ascents — recommended for beginners