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South Wales

Carmarthenshire

The best MTB trails in Carmarthenshire

4.5

(72)

999

riders

65

rides

Mountain biking in Carmarthenshire offers diverse terrain, transitioning from undulating lowland farmland and tranquil river valleys to rugged uplands and scenic coastal areas. The region features extensive forest networks like Brechfa Forest and Cwm Rhaeadr, providing purpose-built tracks with varied elevation profiles. Riders can explore broad floodplains, wooded slopes, and coastal paths, alongside more challenging climbs in areas extending into the Black Mountain. This varied topography creates a rich environment for mountain biking.

Best mountain bike trails in Carmarthenshire

  • The…

Last updated: April 24, 2026

4.5

(21)

227

riders

#1.

Gorlech Trail

19.1km

01:59

460m

460m

Get ready for a dynamic mountain biking experience on the Gorlech Trail, a moderate route stretching 11.9 miles (19.1 km). You will climb 1498 feet (457 metres) over an estimated…

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Moderate

4.7

(6)

111

riders

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard
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5.0

(8)

74

riders

6.63km

00:42

160m

160m

Experience the Cwm Rhaeadr Red Trail, an easy 4.1-mile mountain bike route with 535 feet of gain in 41 minutes.

Easy

5.0

(1)

47

riders

8.54km

00:51

180m

180m

Experience a difficult 5.3-mile mountain biking route through Brechfa Forest, featuring sculpted singletrack and Cothi valley views.

Hard

5.0

(1)

11

riders

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate

3.0

(1)

5

riders

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Hard

5.0

(1)

3

riders

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

4.8

(4)

6

riders

An easy 10.3-mile mountain biking loop through Pembrey Country Park, featuring forests, ponds, and coastal views.

Easy

3

riders

This difficult 32.8-mile mountain biking loop from Brynamman offers rugged terrain and panoramic views in Bannau Brycheiniog National Park.

Hard

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy
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Popular around Carmarthenshire

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Other adventures in Carmarthenshire

Riding into the storm — Black Mountain crossing

Mountain Biking Collection by

Katherine Moore

Tips from the Community

Zoe Evans
November 17, 2023, RSPB Gwenffrwd-Dinas Nature Reserve

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.

1

0

NCN43 follows old railways lines, riverbanks and canals from Swansea to Clydach. This section follows an old railway line, it's flat and gravelled, easy riding but pretty and no cars.

2

0

Lovely mix of fire road to start with and then a huge climb up and over into a valley that time forgot - perfect single track - although can be a bit muddy in places. Probably best to make sure there has not been too much rain in the week before riding this route - and in the winter be prepared for quick changes of weather and plummeting temperatures.

1

0

A fantastic gravel track to the old chapel

1

0

Alex
November 23, 2022, Pembrey Sands

Gorgeous views of the Gower peninsula.

1

0

Adie
November 23, 2022, Cwtsh Y Coed Café

A fab little coffee shop serving locally roasted Coaltown coffee, teas, cakes and more! Check opening times: https://www.facebook.com/cwtshycoed

0

0

This attractive RSPB site has a circular footpath adjacent to a river with beautiful rock cascades and old mossy trees. It is also home to the Twm Sion Cati's cave. All worth a look off of the bike.

1

0

Alex
November 23, 2022, Capel Soar y Mynydd

Capel Soar Y Mynydd is the most remote chapel in Wales. An invaluable spot to find some shelter on longer trips!

2

0

Frequently Asked Questions

How many mountain bike trails are available in Carmarthenshire?

Carmarthenshire offers a wide selection of mountain biking opportunities, with over 60 routes documented on komoot. These trails cater to various skill levels, from easy family-friendly rides to challenging expert-level tracks.

What are the difficulty levels of mountain bike trails in Carmarthenshire?

The trails in Carmarthenshire are diverse, with 15 easy routes perfect for beginners or families, 36 moderate trails for those seeking a bit more challenge, and 15 difficult routes designed for experienced riders looking for technical features and significant climbs.

Are there any family-friendly mountain bike trails in Carmarthenshire?

Yes, Carmarthenshire has several excellent options for families. Derwen Green Trail in Brechfa Forest is a great choice, offering an easier experience. Another fantastic location is Pembrey Country Park and Forest loop, which features numerous bike tracks and cycleways suitable for all ages, with bike hire available on-site.

Which trails offer challenging rides for advanced mountain bikers?

For experienced riders, the Brechfa Forest — Black Raven Trail is a formidable black-graded route with demanding terrain. Additionally, the Black Mountain loop from Brynamman offers a long and difficult ride with significant elevation changes and panoramic views.

Are there mountain bike trails with waterfalls or scenic viewpoints?

Yes, Cwm Rhaeadr Red Trail in the upper Tywi Valley is known for its stunning views over a scenic valley and a waterfall. For breathtaking vistas, consider routes that pass near Llyn y Fan Fach or the Llyn Brianne Dam.

What do other mountain bikers enjoy most about riding in Carmarthenshire?

The mountain biking experience in Carmarthenshire is highly rated by the komoot community, with an average score of 4.5 stars from over 70 reviews. Riders frequently praise the region's diverse terrain, from extensive forest networks to scenic river valleys and varied coastal paths, offering options for all ability levels.

Are there any mountain bike parks or dedicated facilities in the area?

Yes, Hafod Trails Bike Park, located near Llandeilo on the edge of Brechfa Forest, is a family-run facility offering uplifted trails with green, blue, red, and black grades. It caters to all abilities and provides opportunities for skill development, coaching, and on-site food.

Can I find circular mountain bike routes in Carmarthenshire?

Many of Carmarthenshire's mountain bike trails are designed as loops. Examples include the Doethie Valley and Llyn Brianne loop, the Llyn Brianne and the Cambrian Mountains loop, and the Brynffo and Esgair Fwyog loop, all offering varied distances and challenges.

What kind of natural attractions or landmarks can I explore along the trails?

Carmarthenshire's trails often pass through or near significant natural and historical sites. You can discover stunning peaks like Picws Du summit, tranquil lakes such as Llyn y Fan Fach, and other natural monuments like Garreg Las Summit Cairns. The Tywi Valley also features historic landscapes and castles.

Is public transport available to access mountain bike trails in Carmarthenshire?

While some areas are more remote, key towns in Carmarthenshire are served by public transport. For specific trailheads, it's advisable to check local bus routes or train services to nearby towns and plan your journey accordingly, as direct access to all forest trails via public transport can be limited.

Are there parking facilities at the main mountain biking locations?

Yes, major mountain biking destinations like Brechfa Forest and Pembrey Country Park offer free car parks and picnic facilities, making it convenient for riders to access the trails. Other trailheads may have designated parking areas, but it's always good to check in advance.

What is the best time of year for mountain biking in Carmarthenshire?

Carmarthenshire offers mountain biking opportunities year-round, but the spring and autumn months generally provide the most pleasant conditions with milder weather and vibrant landscapes. Summer can be great, but trails might be busier. Winter riding is possible, especially on well-drained trails, but be prepared for potentially wet and muddy conditions.

Are mountain bike trails in Carmarthenshire dog-friendly?

Many trails in Carmarthenshire's forests and country parks are dog-friendly, allowing you to bring your canine companion. However, it's crucial to keep dogs under control, especially around livestock or wildlife, and to follow any local signage regarding leads or restrictions. Always check specific trail rules before you go.

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Didn’t find what you were looking for?

Check out more MTB trails throughout Carmarthenshire below and find the perfect route in your destination.

Allt Rhyd Y Groes National Nature ReserveLlanllwniLlanwrdaAbergwiliCilycwmCynwyl GaeoHenllanfalltegLlandybieLlanfihangel AberbythychManordeilo And SalemLlanddarogDinefwr Estate National Nature ReserveWaun Las National Nature ReserveCarmel National Nature ReserveStradey WoodLlangathenPembrey And Burry Port TownFforest CrychanLlanfihangel-Ar-ArthLlanfynyddLlanelli RuralLlangelerLlanfair-Ar-Y-BrynCilymaenllwydPontyberemCaio ForestWhitlandLlanarthneyLlanboidyLlanddeusantLlandeiloLlandyfaelogLlanediLlansadwrnLlansawelLlanycrwysMyddfaiPencarregTalleyTrimsaranLlannonLlanybydderKidwellyLlanelliGorslasLlanegwadLlanfihangel Rhos-Y-CornEglwyscumminAmmanfordLlangennechLlandoveryLlangunnorQuarter BachPembrey ForestCynwyl ElfedCwmammanLlangadogCyngor Bro Dyffryn CennenLlanpumsaintBetwsBrechfa ForestLlangyndeyrnLlyn y Fan FachLlanllawddogSt. Ishmael

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