Mangerton Mountain via Devil’s Punchbowl Loop

The small lay-by is beside the Finoulagh River. Cross the stream on a concrete slab, pass a little gate, then follow the stony, well-worn track south and southwest. The climb starts gradually and opens onto a broad plain where the Lakes of Killarney and MacGillycuddy’s Reeks come into view behind you. The path gets rougher as you gain height: gravel gives way to loose stones, and the upper slopes can be wet and boggy. The plain below the mountain is associated with the 1261 Battle of Callann, when Irish forces defeated the Anglo-Normans.

The Punchbowl is a dark lake tucked into steep corrie walls below Mangerton. Near a boulder with an iron bar, the described route stays straight at the fork instead of taking the tempting left branch. At the lake’s north end, keep right and cross the Owengarriff River outlet. Then leave the shore across the grassy flank and climb the broad ridge. At the fork before a cairn, keep left to stay on Mangerton’s ridge. The loop circles the bowl, then meets the approach near the outlet for the walk back down. At the lake, frame the dark water with the enclosing ridges; it’s the walk’s signature view.

The climb steepens over small boulders as the ridge rises toward an open, marshy plateau. A cairn and trig point mark the summit area; reaching the true high point can mean crossing wet bog. The ridge runs close to steep ground on the lake side, so give the edge room, especially on the descent. On a clear day, look north over Muckross and the Lakes of Killarney, then turn south for views across Kerry and toward Cork. The upper slopes are also red and sika deer country, and ravens, kestrels and peregrines may be riding the air above the corrie.

The bowl’s steep-sided shape can look volcanic, and an account from the 1780s described it as an extinct crater. It is a glacial corrie, carved by ice moving down the valley during the last Ice Age. The Irish name Poll an Ifrinn is often translated as “Hole of Hell,” though its origin is uncertain; local stories tie it to the Devil and the O’Donoghue clan.

Parking at Gortagullane is limited: the small lay-by sits in a bend by the river, with another small pull-in farther back on the right. Local walking guides describe this route, but route-specific official access guidance was not found, so check notices on the ground and stay on established paths. Dogs are allowed in the national park on a lead. Molly Darcy’s, near the road turn, is a separate stop for hot food or coffee; it isn’t on the trail.