Overview
Caragh Lake (Irish: Loch Cárthaí) isn’t a natural basin – it was formed by the damming of the Caragh River, a long glacial lake covering close to 5 square kilometres between the town of Killorglin and the village of Glenbeigh. It has one genuine claim to distinction: the rare Kerry slug (Geomalacus maculosus), found in only a handful of places in Europe, was first identified near this lake in 1842. The rugged peaks of the MacGillycuddy’s Reeks rise to the north, and two small islands – Robert’s Island and Illaunbuddoga – sit out on the water.
The lake and its catchment fall within the Killarney National Park, MacGillycuddy’s Reeks and Caragh River Catchment Special Area of Conservation, so the surroundings are genuinely protected. If you only have an hour, skip the shoreline amble and climb the Mountain Spur for the view – details below.
Walking the trails
The Coillte site on the hillside above the lake is the main walking access, and a word of warning: both its trails are graded strenuous, not the gentle lakeside stroll people sometimes expect.
- Caragh Lake Trail (1.7km, about 30 minutes) – a steady climb through the forest, a real muscle-burner in pleasant surrounds.
- Mountain Spur (410m, about 10 minutes) – short and steep to a rocky outcrop with a 360-degree panorama across the lake to the Reeks, Glenbeigh, Inch beach, the Dingle peninsula and the Atlantic. This is the one to do.
- The Old Railway Walk – a flatter, shaded route following the disused Great Southern and Western Railway line, which once ran from Farranfore down to Valentia Harbour.
For long-distance walkers, the Kerry Way passes close to the lake, linking it to the wider mountain trails of the region.
Fishing
Caragh Lake is best known to anglers, and it’s a salmon and trout water rather than a mixed coarse fishery. Permits are required and are best arranged locally – the Caragh Bridge Angling Club is based at the Red Fox Inn in Glenbeigh, and boats can be hired on the northern and western shores. A valid Inland Fisheries Ireland licence is needed for salmon and sea trout. The sheltered water also suits quiet paddling in calm conditions.
Dark skies and stargazing
The lake sits on the edge of the Kerry International Dark Sky Reserve, one of the best-protected night skies in the northern hemisphere. With little light pollution from the surrounding mountains, the Milky Way is clearly visible on a clear night, and the lake’s surface doubles the show. Bring a blanket and a flask and give your eyes twenty minutes to adjust.
Where to stay
There are no hotels on the shore itself, but two restored country houses sit on the lake: Ard na Sidhe Country House, a manor turned luxury hotel, and Carrig Country House & Restaurant, a four-star Victorian house on the water. Killorglin, a ten-minute drive east, has the traditional pubs, live music and the August Puck Fair; Glenbeigh to the west is quieter, with guesthouses and self-catering cottages. Book well ahead for July and August.
Getting there and around
- Location: Off the N70, roughly halfway between Killarney and the Dingle Peninsula, signposted from both Killorglin and Glenbeigh. The N70 runs close by, a quiet stretch outside peak summer and a pleasant one to cycle.
- Parking: Free Coillte car park. Arrive early on summer weekends, as spaces fill.
- Facilities: Picnic tables at the car park, but no toilets and no shop – bring food and water.
- Opening hours: Open access, year-round.
- Safety: The lake is deep and cold even in summer. Wear a life jacket on the water, and keep dogs on a lead near the shore to protect nesting birds.