Ireland's mountain ranges are among its most diverse and ancient geological features. From the folded sandstone peaks of the South-West to the glaciated granite of the Wicklow Mountains, the island offers terrain suitable for every level of hiker, climber, and mountaineer.
This map identifies 22 major ranges across the island. The highest point is Carrauntoohil in the MacGillycuddy’s Reek (Kerry), standing at 1,038 meters. Other iconic peaks include Slieve Donard in the Mournes, Lugnaquilla in Wicklow, and the unique quartzite cones of the Twelve Bens and Maamturks in Connemara.
Most Irish mountain land is privately owned, but access is traditionally granted for responsible hillwalking. Always follow the 'Leave No Trace' principles and respect the landscape and local livestock.
Irish weather is famously unpredictable. Even for shorter hikes, you should carry: Waterproof jacket and trousers, sturdy hiking boots with ankle support, a physical map (OS Discovery Series) and compass, extra layers, plenty of water/food, and a fully charged phone with an emergency whistle.
Unlike some European ranges, most Irish mountain routes are not waymarked. While lower-level paths like the Wicklow Way or Kerry Way are marked, once you head into the high peaks, you are often navigating open terrain without signposts. Navigation skills are essential.
Hiking alone is possible for experienced navigators, but it is generally recommended to hike in groups. Always leave your intended route and expected return time with someone responsible. In an emergency, dial 999 or 112 and ask for Mountain Rescue.
April to September offers the longest daylight and generally milder weather. Winter hiking (November-March) can be spectacular but requires specialized skills and gear for ice and snow, particularly in the Reeks or Wicklow peaks.