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MTB trails
United Kingdom
Wales
South Wales
Carmarthenshire

Llannon

The best MTB trails around Llannon

4.7

(16)

138

riders

26

rides

Mountain bike trails around Llannon, located in Carmarthenshire, Wales, offer diverse landscapes for outdoor activities. The region features a mix of coastal, forested, and elevated terrains, providing varied experiences. Situated between the rivers Peris and Cledan, the area also includes country parks and reservoirs, contributing to its natural appeal. These physical features create a network of trails suitable for different skill levels.

Best mountain bike trails around Llannon

  • The most popular mountain bike trail is Llyn Llech Owain Park loop

Last updated: June 21, 2026

#1.

Llyn Llech Owain Park loop

7.19km

00:36

60m

60m

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

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Easy

5.0

(1)

9

riders

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

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

Moderate

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

Moderate

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

Moderate
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Tips from the Community

Phil Bowen
April 21, 2026, Swiss Valley Trail

Near Tumble the trail is closed due to a landslide, so be aware you cannot make it all the way through to crosshands.

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Cycle Route 47 is closed between Tumble and Pontyberem due to a landslide

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A lovely little cafe for a quick pit stop en route

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Lovely and flat

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This beautiful reservoir is framed by the stunning mountain scenery of the Brecon Beacons. From the vantage point of the Swidd Valley Trail, you can enjoy a great view of the reservoir and its picturesque surroundings.

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Lovely cycle path. Nice pub on route just off of cycle path with good food but a little expensive. Route has nice views

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Absolutely fantastic cycle path, intersects with quite a few other routes as well, I’ve ridden this quite a few times & think it’s a cracking path!

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Really good cycle path with loads of stunning views, intersecting paths & trails on this route as well so you can easily explore!

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Frequently Asked Questions

How many mountain bike trails are there in Llannon?

Llannon offers a good selection of mountain biking opportunities, with over 25 trails available for exploration. These routes cater to various skill levels, ensuring there's something for everyone.

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

The trails around Llannon primarily range from easy to moderate difficulty. You'll find 8 easy routes, perfect for beginners or a relaxed ride, and 19 moderate trails that require good fitness and offer more challenging terrain. There are no difficult-graded trails directly within the immediate Llannon area, but the wider Carmarthenshire region, such as Brechfa Forest, offers more advanced options.

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

Yes, Llannon has several family-friendly options. The area includes 8 easy-graded routes that are suitable for families. For example, the Llyn Llech Owain Park loop offers varying difficulties within a country park setting, making it adaptable for different family members. Additionally, the Amman Valley Cycleway provides a gentler, mostly flat ride along the river bank, which is ideal for families.

What kind of terrain can I expect on mountain bike trails in Llannon?

Mountain biking in Llannon features diverse terrain, including forested areas, elevated sections, and paths around reservoirs. The region's landscape combines coastal, forested, and elevated terrains, offering a varied riding experience. You'll encounter everything from country park loops to routes with significant elevation gain, such as those leading to Mynydd Pysgodlyn Trig Point.

What natural features or landmarks can I see along the mountain bike trails?

The trails around Llannon offer access to several notable natural features and landmarks. You can explore the diverse habitats around the Upper Lliw Reservoir and Lower Lliw Reservoir, known for their stunning mountain scenery and birdwatching opportunities. The Mynydd y Gwair / Betws Mountain Ascent provides wonderful scenery after a substantial climb. You might also encounter the Penllergare Waterfall near the reservoirs.

Are there any circular mountain bike routes in Llannon?

Yes, many of the mountain bike trails in Llannon are designed as loops or circular routes. Popular options include the Llyn Llech Owain Park loop, the Mynydd Pysgodlyn Trig Point – Brynllefrith Plantation Trail loop from Pontarddulais, and the Swiss Valley Reservoir loop from Gorslas. These loops allow you to start and finish at the same point, making planning easier.

What do other mountain bikers enjoy the most about mountain biking in Llannon?

The area is highly rated by the komoot community, with an average score of 4.7 stars from over 15 reviews. Reviewers often praise the varied terrain, the mix of forested and elevated paths, and the well-maintained trails that cater to different skill levels. The scenic beauty, especially around the reservoirs and elevated viewpoints, is also frequently highlighted.

Can I reach the mountain bike trails in Llannon using public transport?

While specific public transport links directly to every trailhead might be limited, Llannon is situated in Carmarthenshire, which has some bus services. For routes like the Swiss Valley Trail – Millennium Coastal Path loop from Pontyberem, you might find public transport options to nearby towns, followed by a short ride to the trailhead. It's advisable to check local bus schedules for the most up-to-date information when planning your trip.

Are there specific trails that offer good viewpoints?

Absolutely. The Mynydd Pysgodlyn Trig Point – Brynllefrith Plantation Trail loop includes the Mynydd Pysgodlyn Trig Point, which is known for its elevated position and potential for views. Additionally, the Mynydd y Gwair / Betws Mountain Ascent rewards cyclists with wonderful scenery from its higher elevations.

What is the best time of year to go mountain biking in Llannon?

Llannon offers good mountain biking conditions for much of the year. Spring and autumn generally provide pleasant temperatures and vibrant scenery, with less chance of extreme weather. Summer is also popular, but trails can be busier. While winter riding is possible, be prepared for potentially wet and muddy conditions, especially in forested areas, and check local weather forecasts.

Are there any trails that follow rivers or coastal paths?

Yes, the region benefits from its location between the rivers Peris and Cledan, and its proximity to the coast. The Swiss Valley Trail – Millennium Coastal Path loop connects inland trails with the coastal area, offering a mix of environments. The Amman Valley Cycleway also follows a river bank, providing a scenic and generally flat ride.

What kind of wildlife might I encounter while mountain biking in Llannon?

The diverse habitats around Llannon, including woodlands, scrub, and reservoir areas, support various wildlife. Birdwatchers, in particular, can spot species such as Peregrine, Kestrel, Raven, and Red Kite around the Lliw Reservoirs. Keep an eye out for other local fauna as you ride through the natural landscapes.

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