Lough Conn – Mayo’s Majestic Lake and Outdoor Playground

📍 County Mayo, Mayo

🏛️ Attraction

Last updated: 28 April 2026

Overview

Lough Conn (Irish: Loch Con) sits in the heart of County Mayo and ranks as Ireland’s seventh‑largest lake, covering roughly 48 km². The lake forms a natural partnership with its neighbour Lough Cullin to the south, linked by a narrow channel beneath the R310 at Pontoon. From there the River Moy carries the waters to the Atlantic at Killala Bay. The lake’s clear, peat‑tinged surface reflects the towering silhouette of Nephin Mountain, creating a classic Mayo landscape that draws anglers, hikers and photographers alike.

History

The name “Loch Con” is steeped in Gaelic myth. One legend tells of Fionn mac Cumhaill’s hounds, Conn and Cullin, chasing a wild boar; the animal’s frantic steps poured water from its feet, forming the two lakes where the hounds eventually drowned. Another tradition simply translates the name as “the lake of the hounds”, recalling a chieftain’s dogs that perished while pursuing a wild pig. The ruins of Errew Abbey, a medieval priory on the lake’s western shore, hint at the area’s long monastic heritage.

What to See & Do

Fishing

Fishing
Courtesy Celtic Routes

Lough Conn is renowned for its trout and salmon fisheries. Anglers from across Ireland and abroad visit the lake in spring and autumn to cast for brown trout, sea trout and Atlantic salmon. While no specific licence information is provided here, local tackle shops in Foxford and Ballina can advise on permits and the best fishing spots along the lake’s shallow bays.

Walking & Hiking

Nephin Mountain
Courtesy Paul Richardson_Jet Black Squares

The lake is a hub for walkers of every ability. Popular routes include:

  • Enniscoe House Loop – a gentle 2.9 km woodland circuit starting from the historic Enniscoe House estate, ideal for families and bird‑watchers.
  • Drumin Wood – a 4.7 km out‑and‑back trail skirting the shore of Lough Cullin, offering views of the water and a modest ascent of 108 m.
  • Nephin out and back – a 4.65 mi (7.5 km) moderate hike that climbs 2,325 ft to the summit of Nephin, rewarding trekkers with panoramic vistas over both lakes and the surrounding countryside.
  • Lough Cullin loop from Foxford – an 8.7 km circular walk that traverses the channel between the two lakes and passes historic stone bridges.

These routes are listed on platforms such as Komoot and Outdooractive, where hikers report an average rating of 4.3 stars.

The Lough Conn Drive

Aerial View, Ashford Castle, Co Mayo
Aerial View, Ashford Castle, Co Mayo Courtesy Búlabosca Films for Ashford Castle

For those who prefer a scenic drive, the 102 km Lough Conn Drive loops the lake’s perimeter. Starting in Ballina on the N57, the route follows the R310 south past the village of Knockmore, climbs to a high‑point with a sweeping view of Nephin, and continues past sandy beaches, small villages (Foxford, Pontoon, Lahardane) and historic sites such as Abbeytown Abbey and Castle Deel. Pull‑over spots provide easy access to lakeside picnics, short walks and photo opportunities.

Cultural Highlights

  • Errew Abbey – the ruined priory on the western shore offers a glimpse into medieval monastic life.
  • Megalithic tombs and ringforts – scattered across the surrounding fields, these ancient structures can be spotted near the Blanemore Forest entrance.
  • Local villages – Foxford’s woollen mills, Crossmolina’s Victorian cathedral and the “Titanic Village” of Lahardane add cultural depth to a nature‑focused itinerary.

Wildlife

Lough Conn supports a range of aquatic and avian life. In addition to the prized brown trout, sea trout and Atlantic salmon, the lake is visited by pike, perch and roach. Birdwatchers often spot whooper swans, golden plovers, and waders such as lapwings and curlews along the shoreline. The surrounding woodlands provide habitat for red squirrels, otters and a variety of songbirds. (Fact‑check required for specific species.)

Seasonal Highlights

  • Spring (March‑May) – Salmon run upstream, making it a prime time for anglers. Wildflowers begin to colour the surrounding meadows, and the walking trails are dry and pleasant.
  • Summer (June‑August) – Warm weather encourages swimming in the lake’s shallow bays and picnicking on the many lay‑bys. Early evenings are ideal for photography of Nephin’s silhouette.
  • Autumn (September‑November) – Sea trout and autumn salmon are active, and the foliage turns golden, offering spectacular backdrops for hikes.
  • Winter – While fishing slows, the area remains attractive for quiet walks and wildlife spotting, especially for wintering waterfowl. (Confirm exact fishing season dates.)

Facilities

Parking is available at most trailheads, including the Enniscoe House estate, the R310 turn‑off near Knockmore, and designated lay‑bys along the Lough Conn Drive. Public toilets can be found at the main lay‑by near Pontoon and at the Foxford visitor centre. Picnic tables and benches are scattered throughout the drive’s pull‑over spots, providing convenient places for a break. (Verify presence of all facilities.)

Nearby Attractions

  • Ballycroy National Park – Just a short drive north, this expansive park offers rugged mountain scenery, bogland walks and the famous Bangor Trail. (Ballycroy National Park)
  • Errew Abbey – Already mentioned, the ruins are easily accessed from the western shore.
  • Crossmolina – A historic market town with a Victorian cathedral and craft shops, located a few kilometres east of the lake.

Accommodation

Enniscoe House, perched on the lake’s edge, provides upscale bed‑and‑breakfast rooms and self‑catering apartments. Guests enjoy private garden walks that lead directly to the water, as well as on‑site fishing, a restored Victorian walled garden and easy access to the surrounding trail network.

Practical Information

Lough Conn is freely accessible; there is no admission fee. Parking is available at most trailheads, including the Enniscoe House estate, the R310 turn‑off near Knockmore, and designated lay‑bys along the Lough Conn Drive. The main access points are the villages of Foxford, Pontoon and Crossmolina, all reachable by car. Public transport to the lake is limited; the most reliable option is to drive from Ballina (approximately 15 km) or from Castlebar via the R310.

The lake’s fishing reputation means that anglers should check with local tackle shops for seasonal licence requirements. Dogs are welcome on most woodland and lakeside paths, but owners should keep them on a lead where livestock are present and respect any local signage.

For navigation, the coordinates 54.037332 N, 9.247069 W can be entered into any GPS device. Detailed route maps and downloadable GPX files are available on Komoot and Outdooractive, where you can also log your own experiences.

Driving the Lough Conn Loop

Starting pointMain roadApprox. distanceHighlights
BallinaN57 → R310102 km (loop)Sandy beaches, Nephin views, historic villages
FoxfordR310/R318Access to fishing spots, Enniscoe House, Lough Cullin bridge
PontoonR315Panoramic lake vistas, bridge between the two lakes