5.0
(2)
75
riders
8
rides
Road cycling routes around Llyn y Fan Fach traverse the western edge of the Brecon Beacons National Park in Carmarthenshire, Wales. The region is characterized by rolling hills, deep valleys, and open moorland, with roads often winding through rural landscapes and past small villages. Significant elevation changes are common, offering challenging climbs and descents for road cyclists. The area features a mix of exposed routes and sections sheltered by woodland, providing varied terrain for exploration.
Last updated: November 5, 2026
4
riders
87.5km
04:31
1,150m
1,150m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
9
riders
37.8km
02:19
620m
620m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

34
riders
46.5km
02:31
830m
830m
5.0
(2)
22
riders
Embark on a moderate racebike journey from Craig-y-Nôs Country Park, covering 25.3 miles (40.8 km) with a significant 2144 feet (654 metres) of elevation gain. This route takes about 2…
2
riders
33.1km
01:48
600m
600m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
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In the church vestibule, there are laminated information sheets about the church building and the old yew tree, which you can borrow for a tour. Very informative and interesting, as not everything is immediately apparent from a purely amateurish observation.
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The Defynnog Yew might once have been used for gatherings and meetings. These were known in Wales as 'Cantrefi' / 'Hundreds'. 'Cantref Mawr' became the 'Hundred of Defynnog' and was known by this name between the 12th and 15th centuries. Defynnog was considered an important place, not the small village we see today. Yew historian A. Meredith is convinced that it is a single tree. 'The Defynnog Yew, with a circumference of 40 feet, female, is probably 3,500 years old; it may be more than one yew, but they could all be part of an original tree.' Very impressive!
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A colour village. Llandovery is a lovely place to visit.
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What an absolute gem of a climb. One of my favourites !!!
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Bring plenty of water on this trip as shops are few and far between!
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Great views of the Black Mountain
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The River Tawe begins its journey at Llyn y Fan Fawr, which collects the run off from Fan Brycheiniog. It's just a short uphill walk from here to reach the llyn and the impressive escarpment that towers over it. There's plenty of parking on the road.
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There are over 9 dedicated road cycling routes in the Llyn y Fan Fach area, offering a variety of distances and challenges within the Brecon Beacons National Park.
The routes around Llyn y Fan Fach are predominantly moderate to difficult. You'll encounter significant elevation changes, with routes like Llandovery Castle Ruins – The Towy Bridge Inn loop from Fforest Fawr featuring substantial climbs, making them suitable for experienced road cyclists.
While most routes in the immediate Llyn y Fan Fach area are moderate to difficult due to the hilly terrain, some moderate routes like Coed Tregib Woodland – Bethlehem Hamlet loop from Llanddeusant offer a less intense experience. These still involve elevation but are manageable for cyclists with a reasonable fitness level.
Road cycling around Llyn y Fan Fach is characterized by undulating hills, open moorland, and rural roads. You'll ride through deep valleys and past small villages, with a mix of exposed sections and parts sheltered by woodland, all within the stunning landscape of the Brecon Beacons National Park.
Parking is typically available in or near the starting points of many routes. Look for designated car parks in villages like Llanddeusant or near popular access points to the Brecon Beacons. Always check local signage for any parking restrictions or fees.
Spring and summer (April to September) generally offer the most favorable conditions with milder weather and longer daylight hours. Autumn can also be beautiful with changing foliage, though the weather can be more unpredictable. Winter cycling is possible but requires appropriate gear and caution due to potentially icy or wet roads and shorter days.
Yes, many of the routes are designed as loops, allowing you to start and finish in the same location. Examples include Llandovery Castle Ruins – The Towy Bridge Inn loop from Fforest Fawr and Coed Tregib Woodland – Bethlehem Hamlet loop from Llanddeusant, providing convenient round trips.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the challenging climbs, the quiet rural roads, and the breathtaking views across the Brecon Beacons National Park, highlighting the sense of accomplishment after tackling the significant elevation gains.
While the routes traverse rural landscapes, you'll find opportunities for refreshments in the small villages and hamlets along the way or near common starting points. It's always a good idea to plan your stops in advance, especially on longer routes, as services can be sparse in some areas.
The region offers numerous scenic vistas due to its hilly nature. Routes often provide panoramic views of the surrounding valleys, open moorland, and distant peaks of the Brecon Beacons. Keep an eye out for elevated sections that reveal expansive landscapes, particularly on routes that climb to higher elevations like those passing through challenging passes.
Llyn y Fan Fach's road cycling routes are known for their significant elevation changes and challenging character, often featuring long climbs and descents. While other parts of the Brecon Beacons also offer varied terrain, the Llyn y Fan Fach area specifically provides a robust test for road cyclists seeking a rewarding workout amidst dramatic Welsh scenery.
Winter road cycling in Llyn y Fan Fach requires careful planning. Roads can be wet, icy, or covered in debris, especially in higher elevations. Shorter daylight hours, colder temperatures, and the potential for strong winds mean you should carry extra layers, lights, and be prepared for rapidly changing weather conditions. Always check the forecast before heading out.


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