Lough Errill

📍 Leitrim

🏛️ Attraction

Last updated: 26 May 2026

Overview

Lough Errill is a small, still lake situated in the northwest of County Leitrim, forming part of the wider Lough Rynn Castle estate. Unlike the larger, more active waterways in the region, this lake is defined by its quiet character. The water typically holds a mirror-like surface, catching the changing light of the sky and the rolling green hills that frame it. It is a favourite spot for visitors who prefer unhurried walks and photography over structured attractions.

The Castle Connection

You cannot visit Lough Errill without acknowledging its neighbour. The lake lies just across a narrow strip of land from Lough Rynn Castle, a 15th-century fortification that has been carefully restored by the state. Historically, the estate was held by the O’Rourke family before passing through several hands, including the Parkes, whose influence shaped much of the surrounding landscape. Today, the castle’s stone walls and formal gardens overlook the water, creating a striking backdrop. The lake itself serves as a natural extension of the estate’s grounds, offering a quieter vantage point for taking in the architecture and the wider valley.

Walking & Exploring the Grounds

Access to Lough Errill is straightforward but requires a short walk from the main car park. There are no formal boardwalks or marked trails specifically around the lake, but visitors are welcome to explore the public footpaths that fringe the water’s edge. The terrain is generally flat and easy to navigate, making it suitable for families and those with mobility aids, though wellingtons or sturdy shoes are recommended as the grassy banks can be damp, particularly after rain.

Because the area is largely uncommercialised, you’ll find little in the way of signage or facilities directly at the lake. This lack of development is part of its appeal. It’s a place to sit on a bench or a dry stone wall, watch the water ripple, and enjoy the absence of traffic noise. Dogs are welcome on leads, and the open space provides a good environment for a relaxed stroll.

Photography & Seasonal Character

The lake’s stillness makes it a reliable subject for photographers. Early morning and late afternoon offer the best light, with the water often reflecting the castle ruins, passing clouds, and the surrounding hedgerows. Seasonal shifts are clearly visible on the surface: spring brings soft greens and fresh growth along the banks, summer stretches the daylight for longer sessions, autumn turns the hillsides to gold and russet, and winter often brings a layer of mist that softens the entire landscape. There is no admission charge to view the lake, and its free access means you can return as often as you like to capture different conditions.

Getting There & Practical Details

Lough Errill is located just north of Mohill, off the N4. Follow signs for Lough Rynn Castle, then continue along the estate road until you reach the main visitor parking area. From there, a short walk across the grounds leads to the lake. Public transport options are limited in this part of Leitrim; driving or cycling is the most practical way to reach the estate. The nearest rail stop is Dromod, roughly ten kilometres away, though connecting services are infrequent.

There are no dedicated toilets, refreshment points, or information boards at the lake itself. Visitors should plan to use the facilities at Lough Rynn Castle, which include a café and visitor centre. Parking is free and first-come, first-served. As the lake sits within a private estate, it’s important to stay on established paths, respect any boundary markers, and avoid disturbing wildlife or damaging the grassy verges.

Nearby Attractions

A visit to Lough Errill is easily combined with other highlights in north Leitrim. The Lough Rynn Castle grounds themselves are worth exploring, with their walled gardens, heritage displays, and guided tours. Just a short drive away, Dromod offers a glimpse into Ireland’s canal and railway history, while the Shannon-Erne Waterway provides a scenic route for boaters and walkers. For those heading south, Carrick on Shannon is a lively riverside town with pubs, shops, and access to the Glencar Waterfall and valley trails.

Final Tips for Visitors

The best time to visit is on a still, overcast day or during the golden hours of dawn and dusk, when reflections are clearest and foot traffic is lowest. Bring a thermos and a blanket if you plan to linger, as there are no on-site shops. Check the weather forecast before heading out, as Leitrim’s lakes can be subject to sudden wind shifts that break the surface calm. Lough Errill rewards patience and quiet observation, offering a straightforward but memorable pause in a day exploring the midlands.