4.3
(26)
88
hikers
02:36
9.34km
170m
Hiking
Hike the moderate 5.8-mile Gleniff Horseshoe loop from Ballintrillick Forest, offering dramatic glacial valley views and Dartry Mountains sc
Last updated: February 26, 2026
Waypoints
Start point
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255 m
Highlight • Viewpoint
Tip by
2.39 km
Highlight • Trail
Tip by
9.34 km
End point
Way Types & Surfaces
Way Types
9.13 km
207 m
Surfaces
9.34 km
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Elevation
Highest point (240 m)
Lowest point (80 m)
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Weather
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Saturday 9 May
11°C
1°C
23 %
Additional weather tips
Max wind speed: 23.0 km/h
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This route was planned by komoot.
The full loop generally takes between 2.5 to 4 hours to complete, depending on your pace and how often you stop to enjoy the views. The komoot tour suggests an average duration of approximately 2 hours and 35 minutes.
The primary walking route largely follows quiet country roads, making it accessible. However, some sections involve forest paths. As you ascend the horseshoe, you'll encounter steep gradients offering impressive views. The terrain near Diarmuid and Gráinne's Cave is very challenging and slippery, and climbing to it is strongly advised against.
The main loop is considered a moderate difficulty hike. While the road walk is manageable for those with a reasonable level of fitness, the steep sections require some stamina. It's not recommended for absolute beginners unless they are prepared for some uphill effort.
While the specific starting point from Ballintrillick Forest is mentioned, a common access point for the Gleniff Horseshoe is near the Gleniff Barytes Mill Site. This area often provides parking options, and it's a good place to begin your walk.
You'll encounter dramatic landscapes shaped by the Ice Age, including the towering Dartry Mountains. Notable features include the legendary Diarmuid and Gráinne's Cave (viewable from the road), the intriguing Magic Hill, and the ruins of the Bartyes Mill Site. There are also stunning views from the Gleniff Horseshoe Viewpoint.
Yes, the Gleniff Horseshoe loop is generally dog-friendly. However, it's always recommended to keep dogs on a leash, especially when walking on roads or near livestock, and to clean up after them to preserve the natural environment.
The best time to hike is typically during the drier months, from late spring to early autumn (May to September), when the weather is milder and the views are clearer. Always check the local weather forecast before you go, as conditions can change rapidly in the mountains.
No, there are no permits required or entrance fees to hike the Gleniff Horseshoe loop. It is freely accessible to the public.
Yes, sections of this route overlap with other established trails. Approximately 6% of the route follows parts of the EuroVelo 1 and the North West Trail.
While the main loop is moderate, it's crucial to be aware that attempting to climb to Diarmuid and Gráinne's Cave is highly dangerous due to extremely steep and slippery terrain. Authorities strongly advise against it for safety reasons. Stick to the marked paths and roads.
You can expect breathtaking and wild landscapes, including a unique glacial valley, towering peaks of the Dartry Mountains like Truskmore and Benwiskin, and stunning views of Donegal Bay. The route also features small waterfalls, babbling mountain streams, and peaceful woodland walks.
The majority of this walk is on quiet country roads. If you do it anticlockwise then there are two short trail loops at the end to finish the walk.