Tonelagee

Tonelagee is a mountain in the Wicklow Mountains of eastern Ireland with a summit at about 817 metres above sea level, making it one of the range’s higher peaks. The mountain is popular with hillwalkers for accessible ridgelines and panoramic summit views.

Routes to Tonelagee commonly approach via corrie lakes and mountain tracks, with the lake Lough Ouler lying beneath the northern face and forming an attractive feature on standard circuits. The summit is a broad plateau marked by cairns and offers wide views over the Wicklow uplands and, on clear days, toward the Irish Sea.

Weather in the Wicklow Mountains can change rapidly and paths can be boggy in places, so walkers should be prepared with suitable footwear, maps, and navigation equipment. Access is typically from nearby valley roads and village trailheads in County Wicklow.

• Elevation and popularity: Summit elevation is 817 metres, making it one of the higher peaks in the Wicklow Mountains and a frequent objective for day hikers from Dublin and the surrounding counties.

What to See #

• Lough Ouler: A corrie lake known as Lough Ouler sits below the mountain's northern escarpment and is a common turnaround point for popular walking routes.
• Summit plateau and views: The summit plateau and cairn offer wide-ranging views over the Wicklow Mountains, including nearby peaks such as Lugnaquilla and the Wicklow uplands to the east and north.