4.7
(33)
2,388
runners
79
runs
Jogging around Llyn Nantlle Uchaf offers routes through a landscape characterized by the lake itself, surrounded by rolling hills and open valleys in Snowdonia. The region provides a mix of terrain, from lakeside paths to routes ascending gentle slopes, suitable for various running preferences. With more than 80 jogging routes available, runners can explore the area's natural beauty. The trails often feature views of the lake and the surrounding Welsh countryside.
Last updated: July 8, 2026
8
runners
6.57km
00:42
80m
80m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
34
runners
5.56km
00:41
150m
150m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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8
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
10
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
13
runners
10.0km
01:06
200m
200m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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A great view of Snowdon sitting over the Nantlle Valley
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Llyn Nantlle Uchaf is a gorgeous little lake in the tranquil Nantlle Valley. It used to be one of two lakes here, however the lower lake was drained to protect the slate quarries. It was the subject of a famous 18th-century painting, 'View of Snowdon from Llyn Nantlle' by Richard Wilson, and is also the main setting of the fourth branch of the Mabinogion, Britain's earliest prose stories.
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You are likely to have heard of the Nantlle (pronounced Nant-lee) Ridge, a sinuous and wonderful traverse of medium-sized peaks to the south west of the Snowdon Massif. The ridge is named after this little village to the north west, which has its own little llyn (lake) and a proud slate mining heritage. The Nantlle Valley is beautifully secluded and undoubtedly scenic. It's thought that around 85% of its population still speak Welsh as their first language. Accommodation can be sought at Trigonos B&B.
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There are over 80 running routes in the Llyn Nantlle Uchaf area, offering a variety of options for different preferences and fitness levels. These include 4 easy routes, 41 moderate routes, and 37 difficult routes.
Yes, Llyn Nantlle Uchaf offers 4 easy jogging routes suitable for beginners or those looking for a less strenuous run. These trails provide a gentle introduction to the area's beautiful scenery.
Many of the running routes around Llyn Nantlle Uchaf are circular, allowing you to start and finish in the same location. For example, the View of Llyn Nantlle – Llyn Nantlle Uchaf loop from Llanllyfni is a popular circular option offering scenic lake views.
The running trails in Llyn Nantlle Uchaf are known for their picturesque views of the lake itself, surrounded by rolling hills and open valleys characteristic of Snowdonia. Routes like the Moel Tryfan Trig Point loop from Y Fron offer elevated perspectives of the surrounding landscape.
While specific 'family-friendly' designations vary, many of the easier and moderate routes, particularly those with less elevation gain and shorter distances, can be enjoyed by families. Consider routes that stick closer to the lake shore for a more accessible experience.
Generally, dogs are welcome on public footpaths and trails in the Llyn Nantlle Uchaf area, but it's important to keep them under control, especially near livestock. Always follow the Countryside Code and check for any specific local restrictions or signage.
Parking is typically available in villages and designated car parks near trailheads around Llyn Nantlle Uchaf. For routes starting from Llanllyfni or Y Fron, you'll often find local parking options. Always check local signage for parking regulations and fees.
The running routes in Llyn Nantlle Uchaf are highly rated by the komoot community, with an average score of 4.7 stars from over 30 reviews. Runners frequently praise the diverse terrain, the stunning lake views, and the peaceful atmosphere of the Welsh countryside.
While the immediate lakeside area is quite rural, you can find cafes and local amenities in nearby villages such as Llanllyfni or Nantlle. It's advisable to plan your route and carry water and snacks, especially for longer runs.
Spring and autumn often offer the most pleasant conditions for running in Llyn Nantlle Uchaf, with milder temperatures and beautiful seasonal colours. Summer can be warm, while winter runs are possible but require appropriate gear for potentially wet and colder weather.
Komoot provides detailed maps and navigation for all routes. You can download routes like the Llyn Nantlle Uchaf – View of Llyn Nantlle loop from Talymignedd Campsite to your device for offline use, ensuring you stay on track even without mobile signal.
Beyond the natural beauty of the lake and hills, some routes may pass by historical features or offer unique viewpoints. For instance, the Old Red Telephone Box – Slate Quarry View, Llanllyfni loop from Llanllyfni offers a glimpse into the region's industrial heritage with views of old slate quarries.


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