Hungry Hill, Mountain summit in Beara Peninsula, Ireland

Hungry Hill is the highest peak of the Caha Mountains at 685 meters, with steep eastern slopes and rocky ridges defining its rugged terrain. The mountain features open moorland and scattered rocks across varied elevations throughout the climb.

Hungry Hill takes its name from the Irish Cnoc Daod, whose second element may be a dialectal form of déad, meaning tooth or jaw; it was anglicised as Knockdhead and Knockday. The mountain is the subject and title of Daphne du Maurier's 1943 novel, which follows the Broderick family, who mine the mountain, and is reputedly based on the Irish ancestors of her friend Christopher Puxley.

The Irish name Cnoc Daod likely derives from a dialectal form of déad, meaning 'tooth' or 'jaw', anglicised as Knockdhead and Knockday. The 1943 novel by Daphne du Maurier takes its title from the mountain, which in the story seems to swallow successive generations of the Broderick family who mine it; the tale is reputedly based on the Irish ancestors of her friend Christopher Puxley.

The summit trail requires about 7 to 8 hours to complete the 13-kilometer route and demands mountain navigation experience. Favorable weather conditions are essential for safely hiking this demanding path.

The Mare's Tail waterfall, fed by the Coomadayallig and Coomarkane lakes at the eastern foot of Hungry Hill, is described as the highest waterfall in Ireland and the UK. The lakes lie below the mountain's eastern slopes, and their outflow drops at the falls.