4.7
(3)
389
runners
32
runs
Jogging around Myddfai offers diverse terrain within Carmarthenshire, Wales, bordering the Brecon Beacons National Park. The region features tranquil lake views, forest paths, and open moorland, providing varied landscapes for runners. Its proximity to the Brecon Beacons means access to a network of trails, from moderate routes to more challenging paths. The area is characterized by its natural features, including the Usk Reservoir and Mynydd Myddfai, offering scenic running experiences.
Last updated: May 7, 2026
5.0
(1)
62
runners
9.76km
01:16
120m
120m
Embark on the Usk Reservoir running loop, a moderate 6.1-mile (9.8 km) jogging route in Brecon Beacons National Park. You will gain about 410 feet (125 metres) in elevation, withβ¦
23
runners
13.5km
01:34
240m
240m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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10
runners
9.44km
01:00
100m
100m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
9
runners
8.92km
00:56
100m
100m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
9
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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There are nice views to be had from here along the length of the Usk Reservoir.
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Dolauhirion Bridge dates from 1773 and is attributed to William Edwards. It is a stone bridge with an 83 ft. span and 12 ft. carriageway at the crown. The bridge has a plain segmental arch and stone parapets. It has been recognised as one of the 12 most beautiful bridges in the world. (Source: https://coflein.gov.uk/en/site/23969?term=Dolauhirion)
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Officially, Bethlehem is the end of the Beacon Way... but absolutely no sign is placed to mark the arrival. It's a very small village (even no pubs :-)), with some beautiful views, especially around the old church.
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Usk Reservoir is a remote 280-acre reservoir below the Black Mountain. Popular for walking, cycling and the reservoir is regarded as offering the best still water trout fishing in Wales. The best time to visit here is at sunset, when most people have headed home.
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Spend a few moments on the bridge over the River Sawdde river to take in the view. A great bird watching spot, if you are patient or lucky enough you may see Sandpipers, Dipper or Kingfisher here.
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There are over 30 running routes around Myddfai, offering a variety of experiences for joggers. These include routes with tranquil lake views, forest paths, and open moorland, catering to different preferences and fitness levels.
Yes, while many routes are moderate, there is at least one easy running route available. The region's diverse terrain also includes gentler paths, especially in the lower slopes of Mynydd Myddfai, which can be suitable for those new to running or looking for a less strenuous jog.
Absolutely. Myddfai's proximity to the Brecon Beacons National Park means access to a vast network of trails, including several challenging options. There are 6 difficult routes available, offering significant elevation gains and rewarding runs for experienced joggers. For example, the path to and around Llyn y Fan Fach, while steep in parts, provides breathtaking views and a rewarding challenge.
Yes, many of the running routes in Myddfai are circular, allowing you to start and finish at the same point. A popular option is the Usk Reservoir running loop, which is 6.1 miles (9.8 km) and offers tranquil lake views and forest paths. Another great choice is the Running loop from Llywel, a moderate 8.4 miles (13.5 km) path with varied terrain.
Myddfai is rich in natural beauty. You can enjoy stunning views of the Usk Reservoir, the open moorland of Mynydd Myddfai, and the broader Brecon Beacons National Park. Iconic landmarks like Llyn y Fan Fach, steeped in myth, and the dramatic Picws Du summit are also accessible, offering spectacular vistas.
Generally, the rural trails around Myddfai are dog-friendly, making it a great place to run with your canine companion. However, as many routes pass through farmland or areas with livestock, it's always best to keep dogs on a lead and follow the Countryside Code. Always check local signage for specific restrictions.
Yes, Myddfai offers options suitable for families. While there is one officially easy route, many of the moderate trails can be adapted for a family outing, especially those with less elevation gain. The tranquil paths around the Usk Reservoir, for instance, provide a pleasant environment for a family jog or walk.
Yes, parking is generally available. The Myddfai Community Hall and Visitor Centre often serves as a convenient starting point for walks and runs, and parking facilities are typically found there or at popular trailheads within the Brecon Beacons National Park, such as near the Usk Reservoir.
The running routes in Myddfai are highly rated by the komoot community, with an average score of 4.7 stars. Runners frequently praise the diverse terrain, from tranquil lake views and forest paths to open moorland, and the stunning scenery of the Brecon Beacons National Park. The variety of routes caters to different abilities, making it a rewarding experience for many.
Yes, the Usk Reservoir is a prominent feature in the region and offers excellent waterside running. The Usk Reservoir running loop provides tranquil lake views and forest paths, making it a popular choice for those who enjoy running alongside water.
The Myddfai Community Hall and Visitor Centre serves as a local hub and offers refreshments, making it a convenient stop before or after your run. Additionally, the nearby villages and towns, such as Llandovery, will have pubs and cafes where you can refuel.
Myddfai offers beautiful running conditions throughout much of the year. Spring and autumn provide pleasant temperatures and vibrant landscapes. Summer is also popular, though trails can be busier. Winter runs can be stunning, especially with snow, but require appropriate gear and caution due to potentially challenging conditions.


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