4.5
(25)
2,315
runners
119
runs
Llyn Eigiau jogging routes are set within a glaciated valley on the edge of Snowdonia National Park's Carneddau mountain range, offering diverse landscapes for running. The region is characterized by the majestic Carneddau mountains, including peaks like Carnedd Llewelyn, and the central Llyn Eigiau lake. Runners can explore Cwm Eigiau, which provides tracks tracing its contours, and encounter other water bodies such as Llyn Dulyn. Dramatic topography, including crags and ridges, adds to the varied terrain available for running.
Last updated: June 24, 2026
4
runners
9.13km
01:04
300m
300m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
runners
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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3
runners
20.8km
02:47
820m
820m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
runners
16.9km
02:31
940m
940m
Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
4.5
(2)
61
runners
13.8km
01:44
310m
310m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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A very fine mountain that is the high point of the Carneddau range. These mountains are high, remote and so much quieter than the Glyderau or Snowdon. Fabulous walking country.
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A very welcome shelter in bad weather on what is a high, exposed and remote mountain in the Carneddau.
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Carnedd Llewelyn is high and relatively remote, so walks there are quite a serious undertaking.
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The Carneddau are high and remote, and this shelter is very welcome when the weather is bad.
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As the previous person said, it is very very wet on the outward path from the bothy. If you do decide to go anyways, make sure to have a walking stick or similar to stabilise you and determine the depth of the water before sticking your foot in it.
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Approaching from the north it is a slog on the bike but nothing technical. With the right gearing and fitness it's all rideable if you're happy to take your time and plod.
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There are over 120 running routes available for you to explore around Llyn Eigiau. These trails cater to various fitness levels, ranging from easy to difficult.
The jogging trails near Llyn Eigiau offer a diverse mix of terrain. You'll find easily accessible paths, well-defined tracks, and more open ground. The landscape features dramatic topography, including prominent crags and ridges like Craig Eigiau and Craig yr Ysfa, set against the backdrop of the majestic Carneddau mountains.
Yes, while many routes are challenging, there are 8 easy running routes around Llyn Eigiau. These are great for beginners or families looking for a less strenuous jog. For a moderate option, the Llyn Ogwen and Ogwen Obelisk โ Llyn Crafnant loop from Trefriw offers a scenic 5.1 km path.
The Llyn Eigiau area is rich in natural beauty and historical features. You can expect panoramic mountain views, especially of the Carneddau range. Notable water bodies include Llyn Eigiau itself, the deep Llyn Dulyn, and Llyn Melynllyn. Some routes also pass by historical sites such as the ruins of the old Eigiau Dam, which has a poignant history, and remnants of old slate quarries.
Yes, many of the running routes in the Llyn Eigiau area are circular, allowing you to start and finish in the same location. For example, the popular View of Llyn Dulyn โ Dulyn Bothy loop from Dolgarrog is a circular trail offering stunning views.
The Llyn Eigiau area is highly rated by the komoot community, with an average score of 4.5 stars. Runners often praise the region for its 'greater wilderness experience' compared to more crowded areas of Snowdonia, appreciating the tranquility and solitude offered by the remote Carneddau mountains and the inspiring panoramic views.
While specific dog-friendly regulations can vary, the Llyn Eigiau area, being part of Snowdonia National Park, generally welcomes dogs on trails. However, it's crucial to keep dogs under close control, especially due to the presence of livestock and wild Carneddau ponies. Always follow the Countryside Code and be mindful of local signage.
Absolutely. The Llyn Eigiau region is known for its more demanding trails, with 71 routes classified as difficult. A challenging option is the Carnedd Llewelyn โ Eigiau Dam Ruins loop from Dolgarrog, a 10.5-mile path that explores the Carneddau mountains and involves significant elevation changes.
The best time to go running around Llyn Eigiau is generally during the spring, summer, and early autumn months when the weather is milder and the trails are less likely to be affected by snow or ice. The views are particularly stunning on clear days. Always check local weather forecasts before heading out, as mountain conditions can change rapidly.
Yes, several routes allow you to experience multiple beautiful lakes. For instance, the Llyn Geirionydd โ Llyn Crafnant loop from Llyn Crafnant takes you through a landscape featuring both Llyn Geirionydd and Llyn Crafnant, offering varied waterside scenery.
Parking options are typically available near trailheads or in nearby villages like Dolgarrog or Trefriw, which serve as starting points for many routes. It's advisable to check specific route descriptions for the most convenient parking locations, especially for popular trails.


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