Coumshingaun Lough Out and Back

This short out-and-back to Coumshingaun Lough packs a huge amount of mountain scenery into roughly 4 km / 2.5 miles, with about 200 m / 656 ft of ascent, making it a solid medium-grade walk rather than a casual lakeside stroll. The route leads into one of Ireland’s most dramatic glacial landscapes in the Comeragh Mountains of County Waterford, where a deep corrie lake sits beneath steep rock walls and ridges carved by Ice Age glaciers. Coumshingaun is widely regarded as one of the finest corrie lakes in Ireland, and the surrounding mountain basin is part of the Comeragh Mountains SAC, a protected upland landscape. (askaboutireland.ie)

The usual starting point is the Coumshingaun Lake Car Park on the R676, near Kilclooney Wood, about 5 km / 3.1 miles west of Kilmacthomas, County Waterford. That is the nearest clear road access point and the most useful landmark for planning. If arriving by car, approach via the R676 between Kilmacthomas and Carrick-on-Suir; the car park is the standard access point used for the lake and sits close to the lower slopes of the corrie. Parking can be limited at busy times, so an early start is sensible, especially on weekends or in good weather. (mapcarta.com)

For public transport, the most practical plan is to travel first to Kilmacthomas, which is served by regional bus connections between Waterford and Dungarvan. From there, the trailhead is still several kilometres away on the R676, so hikers should expect to arrange a taxi, cycle, or a careful road walk if no lift is available. TFI Local Link Waterford and other regional services connect through the area, and Kilmacthomas is the key access village for this hike. For journey planning and timing checks before setting out, it is worth confirming current services in advance. (locallinkwaterford.ie)

What the walk is like

From the car park, the route begins on rough mountain access ground rather than a polished visitor path, so expect uneven footing early on. The out-and-back version generally heads uphill toward the lake rather than completing the full corrie circuit. The first section climbs steadily across open hillside, with the lake hidden at first by the rising ground. As height is gained, the terrain opens quickly and the sense of scale builds fast, with the Comeragh slopes broad behind you and the corrie walls beginning to reveal themselves ahead. Because the total distance is only around 4 km / 2.5 miles, the ascent is concentrated enough to feel fairly continuous. (trips.ie)

The reward comes when the basin of Coumshingaun Lough appears properly: a dark mountain lake enclosed on three sides by steep cliffs that rise roughly 305 m / 1,000 ft in places above the water. Even on a short walk, this is a landscape that feels much bigger than the mileage suggests. The lake itself sits in a classic glacial bowl, with a moraine helping define the lower edge of the corrie. The out-and-back format is a good choice for walkers who want the signature view without committing to the more exposed and demanding full ridge loop. (rathgormack.ie)

Terrain, difficulty and things to watch for

Although the distance is modest, the medium rating is justified. Ground can be wet, peaty, rocky, and slippery, especially after rain. There may be faint paths rather than one consistently obvious track, and in mist the mountain can become confusing surprisingly quickly. Good boots, waterproofs, and confident route-finding are important even for this shorter version. If visibility is poor, using HiiKER for navigation is a sensible way to keep track of the return line to the car park. Strong wind can also be a factor on the open slope and near the corrie edge. (trips.ie)

Care is especially important near steep ground. The cliffs and upper corrie rim are serious mountain terrain, and the lake margins can also be boggy or uneven. This is not the place to underestimate conditions simply because the route is only about 4 km / 2.5 miles. In wet or windy weather, the mountain environment can feel much more committing than the numbers suggest. (byhookorbycrooke.com