About the Region
Northern Ireland packs dramatic mountain scenery into a compact area. The Mourne Mountains in the south are the finest range — granite peaks rising sharply from the Irish Sea. The Antrim Hills and Sperrin Mountains provide further walking of great character.
Slieve Donard (849m) is the highest summit in Northern Ireland and the whole of Ulster. The Mournes are celebrated for the 35km dry-stone Mourne Wall that links their summits — one of Ireland's great mountain challenges.
"The Mountains of Mourne sweep down to the sea — and they are every bit as beautiful as the song suggests."
— Percy French
Mourne Heritage
At 849m, Slieve Donard lords over the Mourne range — a steep, rewarding ascent with views across the Irish Sea to Scotland and Wales.
Northern Ireland concentrates its finest hills into this compact granite range, offering everything from easy walks to serious ridge scrambles.
The 35km dry-stone wall linking the Mourne summits was built 1904–1922 to protect the Silent Valley reservoir — circumnavigating it is an epic challenge.
When to Visit
Conditions improve and crowds thin. Snow may linger on the highest tops — check before heading above 700m.
Long days and warm weather, but popular fells can be busy. Early starts reward you with empty summits.
Many walkers' favourite season. Rich colours, stable weather windows and noticeably fewer people on the paths.
A serious undertaking above the snowline. Crampons and ice-axe skills required. Views on a clear day are unmatched.
Essential Routes
The classic ascent of Ulster's highest peak via the Glen River path from Newcastle.
A serious challenge linking the highest Mourne summits via the historic dry-stone wall.
One of the finest Mourne peaks with excellent rocky terrain and views over Silent Valley.
A popular Belfast escape with dramatic basalt cliffs overlooking the city and Belfast Lough.
Ready to explore Northern Ireland?
Browse all fells, plan routes, and track your progress.