4.7
(111)
10,140
runners
515
runs
Jogging in Snowdonia offers a diverse range of terrain, from glaciated valleys to high mountain passes. The region is characterized by its dramatic peaks, including Yr Wyddfa (Snowdon) and Cadair Idris, numerous lakes, and extensive forests. This varied landscape provides a comprehensive network of trails suitable for different running abilities.
Last updated: May 10, 2026
5.0
(4)
482
runners
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.0
(5)
178
runners
19.7km
02:50
930m
930m
Embark on a difficult jogging adventure through the Carneddau range with the Carnedd Dafydd & Carnedd Llewelyn loop. This challenging route covers 12.2 miles (19.7 km) and ascends a substantial…

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182
runners
14.3km
01:43
290m
300m
The Beast of Brenin Trail is a moderate jogging route spanning 8.9 miles (14.3 km) with a challenging 961 feet (293 metres) of elevation gain, typically taking 1 hour and…
175
runners
9.36km
02:01
790m
790m
The Minffordd Path Cadair Idris Loop offers a difficult jogging challenge, covering 5.8 miles (9.4 km) with a significant elevation gain of 2601 feet (793 metres). You can expect to…
5.0
(1)
132
runners
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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According to legend, Cader is named after a giant called Idris Gawr. 'Cadair Idris' means 'Chair of Idris' in English, while 'Cader' can also refer to an ancient fortress. The place is known as Cader Idris rather than Cadair, but both names are used. The most famous local fable is that if you spend the night on the mountain, you will go mad or become a poet. (Visit Wales)
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It is worth the effort. At the top, you enjoy a beautiful view in all directions. It cannot be captured in photos.
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Here you can, after the crossing (ladder), go to Mynydd Moel (up) or to the Dol Idris parking (down).
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The Minffordd Path (Welsh: Llwybr Minffordd) starts on the south side of the mountain, near the glacial lake Tal-y-llyn. Hikers following this route climb past Llyn Cau and along the edge of Craig Cau (a rock face) to Penygadair. The route is 4.4 kilometres long and includes two ascents of over 300 metres. (Wikipedia)
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Crib Goch is a super “exciting” Grade 1 scramble, but it is important to know your abilities and manage the risks of traversing this amazing ridge. Crib Goch is one of the best ridges of its kind and grade anywhere in the UK. It has great scrambling, with some famous arete sections. On a grade one scramble you will need to use your hands on the rock, and on Crib Goch you will do this often. Traversing the ridge on a sunny day is a marvellous experience; on a cold winter day, or in bad weather, it can be perilous without the appropriate equipment. While often straightforward, Grade 1 scrambles still carry risk due to height and exposure, and they should not be taken for granted, especially in poor weather.
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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 high mountain with reasonable length walk-ins. Good scrambling route on it's north side that gives fine views of the 'Balck Ladders' cliff face.
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Snowdonia, also known as Eryri, offers an incredibly diverse range of terrain for runners. You'll find everything from relatively flat, scenic loops around reservoirs and through dense forests to challenging high mountain passes and demanding fell runs over grass and heather. The landscape, shaped by glaciers, includes dramatic peaks like Yr Wyddfa (Snowdon) and Cadair Idris, numerous lakes, and ancient woodlands, providing a varied experience for all abilities.
Yes, Snowdonia boasts an extensive network of trails. Komoot alone features over 500 running routes in the region. These range from easy forest paths to very challenging mountain runs, ensuring there's something for every runner.
For those new to trail running or looking for a more relaxed experience, Snowdonia offers several excellent options. The Llyn Celyn Trail provides a relatively flat, picturesque loop, and the trails within Coed y Brenin forest offer routes from 4 to 8 miles with minimal elevation. The Precipice Route near the Mawddach Estuary is another easy, circular trail with spectacular views. Lakes like Llyn Geirionnydd and Llyn Crafnant also feature easy 4k runs.
Absolutely. Snowdonia is renowned for its demanding trails. Experienced runners can tackle routes like the Pyg and Miners Track loop on Yr Wyddfa (Snowdon), a difficult 12.2 km trail with significant elevation. Other challenging options include the Carnedd Dafydd & Carnedd Llewelyn loop, which explores high, remote mountains, and the Minffordd Path Cadair Idris Loop, known for its significant elevation gain.
Yes, Snowdonia is home to beautiful waterfalls and natural features. You can find routes that pass by stunning cascades like Aber Falls or Swallow Falls. The Ogwen Valley, for instance, is an ancient glacial valley with waterfalls and woodlands, offering scenic running opportunities. The Idwal River Waterfall is another notable natural monument you might encounter.
The running routes in Snowdonia are highly regarded by the komoot community, with an average score of 4.7 stars from over 100 reviews. Runners frequently praise the breathtaking views, the variety of terrain, and the opportunity to explore iconic mountains and serene valleys. Many appreciate the well-maintained paths and the sense of adventure offered by the more challenging fell runs.
Snowdonia is rich in history and offers several fascinating landmarks. While running, you might pass by historical sites such as the Ruins of the Britannia Copper Mine at Llyn Llydaw. The region also features impressive castles like Harlech Castle and Dolwyddelan Castle, which are often accessible from nearby trails or make for great post-run exploration.
Yes, many of Snowdonia's running routes are designed as circular loops, allowing you to start and finish in the same location. Examples include the Pyg and Miners Track loop on Yr Wyddfa (Snowdon) and the Carnedd Dafydd & Carnedd Llewelyn loop. The Precipice Route is also a well-known easy circular trail.
For forest running, Coed y Brenin is a renowned destination with well-marked trails. The Beast of Brenin Trail, for example, is a popular 14.3 km route leading through dense woodlands. Beddgelert Forest also offers scope for enjoyable trail runs with some ascent, providing a different forest experience.
Many routes in Snowdonia provide spectacular views of Yr Wyddfa (Snowdon), Wales' highest mountain. The Pyg and Miners Track loop directly ascends its slopes, offering panoramic vistas of neighboring peaks and valleys. The Snowdon Ranger Path also climbs through a forest to a mountain lake below Yr Wyddfa's summit, providing excellent views.
Running routes in Snowdonia vary significantly in length and duration. You can find shorter 4 km loops around lakes, while more challenging mountain runs like the Carnedd Dafydd & Carnedd Llewelyn loop can be around 19.7 km and take nearly 3 hours. The Beast of Brenin Trail is a moderate 14.3 km route typically completed in about 1 hour 43 minutes.


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