4.8
(9)
1,864
runners
74
runs
Jogging around Brithdir And Llanfachreth offers a diverse range of running routes within Eryri (Snowdonia) National Park. The region is characterized by significant mountain peaks like Aran Fawddwy and Cadair Idris, alongside lower-lying areas featuring rivers, forests, and hills. Runners can expect varied terrain, from challenging mountain ascents to more moderate trails through valleys and along watercourses.
Last updated: April 25, 2026
22
runners
11.9km
01:44
740m
740m
The Aran Fawddwy loop from Cwm Cywarch offers a demanding jogging experience through Eryri (Snowdonia) National Park. This difficult route spans 7.4 miles (11.9 km) with a significant elevation gain…
4.0
(1)
21
runners
8.83km
00:57
120m
120m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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21
runners
11.2km
01:37
560m
560m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
runners
Moderate run. Good fitness required. Mostly accessible paths. Some sure footedness required.
5
runners
8.57km
01:01
180m
180m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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A very fine mountain that benefits from being a bit off the beaten track, so you are unlikley to see many other people up here. The cliffs on the easten side areabout a thousand feet high.
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The battered trig point on Aran Fawddwy is built of blocks rather then being a concrete lump, and it's exposed and airy position does mean it is on the receiving end of a lot of weather.
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The half-way point on the Minotaur mountain biking route at Coed y Brenin.
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A lovely track to ride along the estuary. Suitable for any bike
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Waterfall on the Mawddach River (45 km long). This waterfall is known as "Rhaeadr Mawddach".
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Waterfall on the river Gain, known as "Pistyll Gain". Very beautiful to see, even from a distance. The River Gain is a major tributary of the River Mawddach.
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The rocky and remote summit of Aran Fawddwy stands at 905 m. It's the only peak in Wales outside the northern Snowdonia range over 900 m. It's a tough run to the summit where ever you start from but the views are great and the descent via Hengwm is awesome!
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There are over 75 running routes in the Brithdir And Llanfachreth area, offering a wide range of experiences for runners of all levels.
The region, part of Eryri (Snowdonia) National Park, features diverse terrain. You can expect challenging mountain ascents to prominent peaks like Aran Fawddwy and Cadair Idris, as well as more moderate trails through river valleys, forests, and hills.
While many routes are moderate to difficult, some trails offer a gentler experience. For instance, the Moel View Bed and Breakfast – Mawddach Trail loop from Dolgellau is a moderate 5.5-mile (8.8 km) path through river valleys and past hills, suitable for those looking for a less strenuous run.
Brithdir And Llanfachreth is known for its challenging mountain runs. Routes like the Aran Fawddwy loop from Cwm Cywarch (7.4 miles with over 740m elevation gain) or the Cadair Idris summit loop from Mach loop west car park (8.8 miles with over 880m elevation gain) offer demanding ascents to prominent summits.
Yes, you can find routes that include natural attractions. The Pistyll Cain Waterfall loop from Coed Ganllwyd National Nature Reserve is a moderate 3.6-mile (5.7 km) route that takes you past the beautiful Pistyll Cain Waterfall.
The running routes in Brithdir And Llanfachreth are highly rated by the komoot community, with an average score of 4.8 stars from over 9 reviews. Runners often praise the varied terrain and the stunning views of Eryri (Snowdonia) National Park.
Many of the running routes in Brithdir And Llanfachreth are designed as loops. Examples include the Aran Fawddwy loop, the Cadair Idris summit loop, and the Bwlch Goriweired – Rhobell Fawr Summit loop from Llanfachreth, all offering varied distances and difficulties.
Absolutely. Many routes offer views of or pass by significant landmarks. You might encounter the Penygadair summit of Cadair Idris, the Summit of Aran Fawddwy, or other natural monuments like Aran Benllyn. These offer fantastic viewpoints and photo opportunities.
The best time to jog generally depends on your preference for weather and trail conditions. Spring and autumn offer pleasant temperatures and vibrant scenery. Summer can be great for longer days, but trails might be busier. Winter running is possible but requires appropriate gear and caution due to potentially challenging conditions on higher ground.
Yes, several routes offer significant distances suitable for longer runs. The Cadair Idris summit loop from Mach loop west car park is 8.8 miles (14.2 km) and the Aran Fawddwy loop from Cwm Cywarch is 7.4 miles (11.9 km), both providing excellent endurance challenges.
While popular trails can see more visitors, the extensive network of routes in Brithdir And Llanfachreth means you can often find quieter paths, especially on less-known trails or during off-peak hours. Exploring routes through forested areas or less frequented valleys can offer a more serene running experience.


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