4.8
(11)
214
riders
13
rides
Gravel biking in Carmarthenshire offers diverse landscapes, from the rugged mountains and forests of the Llyn Brianne area to the coastal paths of the Millennium Coastal Path and the woodlands of Pembrey Forest. The region is characterized by varied terrain, including river valleys like the Tywi Valley, providing a range of experiences for cyclists. These natural features create a network of gravel bike trails suitable for different skill levels.
Last updated: May 5, 2026
4
riders
80.2km
07:05
1,450m
1,450m
Embark on a difficult gravel biking adventure with the Llyn Brianne & The Devil's Staircase loop from Llandovery. This challenging route spans 49.9 miles (80.2 km) and features a substantial…
37
riders
11.8km
00:55
50m
50m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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4.0
(1)
38
riders
50.4km
04:05
1,120m
1,110m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
2
riders
77.3km
05:23
1,390m
1,390m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
29
riders
60.4km
04:38
1,280m
1,280m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
56
riders
90.9km
06:14
1,660m
1,660m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
65.3km
05:07
1,370m
1,370m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.8
(4)
10
riders
23.8km
01:24
50m
50m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
4
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
26.4km
01:45
390m
400m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Cwm R MTB trail is completely blocked at top end due to hundreds of wind fallen trees this winter. Please consider before as you can not navigate loop.
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It was a truly stunning spot to take in the scenery from this elevated panoramic viewpoint. Highly recommended.
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A short climb up from the road brings you to the Dam and carpark, there is no access over the Dam itself. But you do get a good view over the spillway and valley below.
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Devil’s Staircase is a climb for mountain bike type gears and an advantage for those that can ride out of the saddle .My attempts have failed miserably,best of luck.
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Built in 1913 the Rhandirmwyn Bridge links the two sides of the Towy valley by this rivetted girder road bridge. On the southern side you'll find the Towy Bridge Inn, a lovely riverside pub.
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THE TALE OF THE WELSH “ROBIN HOOD” Known as Twm Siôn Cati Twm Siôn Cati is a historically known figure in Welsh folklore. A tale recounted by Meyrick recalls how Twm was asked by a poor man to steal a pitcher for him. They went together to a merchant where Twm started belittling the man's wares. Having told his friend secretly to take the pitcher of his choice, Twm distracted the merchant by telling him there was a hole in one of the pitchers, which the man denied. Twm desired him to put his hand in the pitcher to test it and the man still denied there was a hole. Twm then asked him how, if there was no hole, could he have put his hand inside? By this time his friend had disappeared with his pitcher, undetected. A tale from Prichard's book involves an occasion when Twm is staying in an inn overnight and realises other people are planning to rob him the following day after he sets off. He has a large sum of money with him. The following morning he behaves as though his money is in the pack-saddle of his horse. When the highwayman catches up, Twm drops the saddle in the middle of a pool. The highwayman wades into the pool to fetch it, Twm takes the opportunity to make off with the highwayman's horse. A complication arises because the horse responds to the voice of the highwayman crying "Stop!" Luckily Twm, in terror, happens to shout a word which makes the horse gallop on again, and he is conveyed to safety. Another tale recounts how Twm waylaid a rich squire, who was accompanied by his daughter, Twm was so smitten with her that he returned her jewellery to her and attempted to woo her, against her father's opposition and, initially, her own. One full moon shortly after the robbery, he crept to her window, roused her from sleep, caught her hand at the window and kissed it, refusing to let her go until she promised to marry him. She wouldn't promise so Twm drew his dagger, drew blood on her wrist and threatened to sever her hand unless she assented to marriage forthwith. She agreed to marry him and she kept her hand. Their marriage followed soon after, despite her father's views and the directness of Twm's courtship methods. The girl was supposedly the widow of the sheriff of Carmarthen. Through this marriage Twm is supposed to have gained respectability, eventually becoming a justice of the peace, sitting in judgement on others, a position he held until his death aged 79.
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Pembrey Forest and country park covers over 500 acres of woodland and dune area. The trails through the forest and along the coast are all brilliant running, with miles of easy underfoot terrain in a peaceful setting.
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There are 17 gravel bike trails documented in Carmarthenshire, offering a diverse range of experiences from easy rides through woodlands to challenging climbs in mountainous terrain.
Yes, Carmarthenshire offers several easy gravel bike trails perfect for beginners and families. For instance, the Pembrey Forest – Pond and Bird Hide loop from Car Park 9 is an easy 7.3-mile ride through woodlands. The Millennium Coastal Path also provides mostly flat, well-surfaced, traffic-free routes ideal for a relaxed ride.
For experienced riders seeking a challenge, the Llyn Brianne area is highly recommended. Routes like the Llyn Brianne & The Devil's Staircase loop from Llandovery, spanning nearly 50 miles with significant elevation gain, offer rugged scenery and demanding climbs. Another difficult option is the Super Steep Climb – Forest Track loop from Pwll Yr Hyddod.
Carmarthenshire's gravel biking routes traverse incredibly varied landscapes. You can explore the rugged mountains and forests around Llyn Brianne, enjoy coastal views along the Millennium Coastal Path, or ride through the tranquil woodlands of Pembrey Forest and Crychan Forest. The region also features scenic river valleys like the Tywi Valley.
Yes, many routes pass by or near interesting attractions. You can explore historic sites like Carreg Cennen Castle, or enjoy natural beauty spots such as Picws Du summit & view of Llyn y Fan Fach and the serene Llyn y Fan Fach. The region is rich in castles, country parks, and natural monuments.
The gravel biking routes in Carmarthenshire are highly rated by the komoot community, with an average score of 4.5 stars from over 10 reviews. Riders often praise the diverse terrain, from challenging mountain climbs to peaceful forest paths, and the stunning natural beauty of the region.
For those looking for longer rides, Carmarthenshire offers several extensive loops. The View of Llyn Brianne – Llyn Brianne Dam loop from Llandovery is over 58 miles (93 km), and the Llandovery Castle Ruins – Llyn Brianne Dam loop from Llandovery covers approximately 56 miles (90 km), both providing epic journeys through the Llyn Brianne area.
Many of the gravel bike trails in Carmarthenshire are designed as loops, allowing you to start and finish at the same point. Examples include the Burry Port Harbour loop from Pembrey and Burry Port and the various loops around Llyn Brianne and Pembrey Forest.
The Tywi Valley Path is an exciting new traffic-free route that follows the River Tywi, offering dramatic off-road views. While it is set to fully open by Easter 2026, sections are already accessible and suitable for gravel biking, connecting towns and attractions through scenic areas.
Carmarthenshire is well-equipped to cater to cyclists, with plenty of bike-friendly cafes, pubs, and accommodation options in charming market towns like Carmarthen, Llandeilo, and Llandovery. Many routes pass through or near these towns, providing opportunities for refreshment stops.
Carmarthenshire's diverse terrain means conditions can vary. While coastal paths might remain rideable, higher elevation areas like the Black Mountain or Llyn Brianne can experience colder temperatures, rain, and potentially snow, making trails more challenging. It's always advisable to check local weather forecasts and trail conditions before heading out in winter.
For additional information and resources on cycling in the region, you can visit the official tourism website: visitwales.com.


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