4.5
(45)
611
riders
38
rides
Touring cycling routes around Llandeilo traverse the verdant Tywi Valley, characterized by rolling hills and the meandering River Towy. The region borders the Bannau Brycheiniog (Brecon Beacons) National Park, offering access to the Black Mountain range and its challenging ascents. Ancient woodlands, such as Castle Woods, and open parklands like Dinefwr Park, provide varied terrain for cyclists. This landscape offers a mix of riverside paths, quiet country lanes, and more demanding climbs.
Last updated: May 11, 2026
5.0
(1)
2
riders
43.9km
03:12
880m
880m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
33.5km
02:16
430m
430m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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68.4km
04:49
1,070m
1,070m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
31
riders
48.4km
02:59
460m
460m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
21
riders
74.6km
04:37
600m
600m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The Black Mountain Category 3 Climb from Brynaman is a 5.5km climb with a total ascent of 312m, topping out at 495m. The average gradient is 5.8% with the steepest 100m section reaching 8.4%. Grind out the best gear you can on the consistent slope and gradually as you rise above the valley towards the plateau you are rewarded with some of the best scenery in Wales. You've earnt the descent.
0
0
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.
1
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A beautiful section the Cycle Across the Beacons route, with the road passing to the South of the Usk reservoir and crossing the River Usk itself.
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The Black Mountain Category 3 Climb from Brynaman is a 5.5km climb with a total ascent of 312m, topping out at 495m. The average gradient is 5.8% with the steepest 100m section reaching 8.4%. Grind out the best gear you can on the consistent slope and gradually as you rise above the valley towards the plateau you are rewarded with some of the best scenery in Wales. You've earnt the descent.
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Fab but the roads over the top are NOT ROADS they are farm tracks. We had to carry our bikes over styles and push them through over animal tracks Would have broken a wheel otherwise However a fab experience none the less TIP: always check the pub is actually open and what time they close
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This is a great cycle path, loads of room for every one
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There are over 35 touring cycling routes around Llandeilo documented on komoot, offering a diverse range of experiences. These include 3 easy routes, 20 moderate routes, and 15 difficult routes, catering to various skill levels and preferences.
For families, the Amman Valley Cycleway offers a gentler, mostly flat ride along the river bank. Additionally, the developing Tywi Cycle Path, which redevelops a former railway track, provides a traffic-free option with scenic views, ideal for a leisurely family outing.
Yes, many routes around Llandeilo are circular. For example, the moderate Llyn Llech Owain Country Park loop from Llandeilo takes you through a country park with a lake and woodlands. For a more challenging option, consider the Amman Valley & Black Mountain loop from Llandeilo.
Llandeilo is set within the lush Tywi Valley, characterized by rolling hills, green pastures, and the meandering River Towy. You'll also find ancient woodlands like Castle Woods, and open parklands such as Dinefwr Park. The region borders the Bannau Brycheiniog (Brecon Beacons) National Park, offering access to the dramatic Black Mountain range with its moorland and expansive skies.
The area is rich in history. You can explore medieval ruins like Carreg Cennen Castle, dramatically perched on a limestone crag, or the National Trust's Dinefwr Castle and Park, which includes a stately home and deer park. Other nearby historical sites include Dryslwyn Castle and Talley Abbey.
The spring and summer months (April to September) generally offer the most pleasant weather for touring cycling in Llandeilo, with warmer temperatures and longer daylight hours. Spring brings blooming bluebells to ancient woodlands like Castle Woods, while autumn offers beautiful foliage. Always check the local weather forecast before heading out, especially if planning to cycle in the Black Mountain range.
Absolutely. Beyond the castles, you might encounter Llygad Llwchwr, the 'eye of the Loughor,' where the River Loughor emerges from an underground lake. The National Botanic Garden of Wales, with its impressive Great Glasshouse, is also within reach and can be incorporated into longer tours.
The touring cycling routes in Llandeilo are highly rated by the komoot community, with an average score of 4.5 stars from over 44 reviews. Cyclists often praise the varied terrain, from gentle riverside paths to challenging mountain climbs, and the stunning historical and natural points of interest along the way.
Llandeilo town center offers various parking options. For specific routes, it's advisable to check the starting point of your chosen tour on komoot, as many routes begin from locations with designated parking or accessible roadside areas. For example, routes starting from Ffairfach, just outside Llandeilo, often have convenient parking.
Llandeilo is served by the Heart of Wales Line, a railway line that passes through the town. It's recommended to check the specific bike policy of Transport for Wales for carrying bicycles on trains, as space can be limited, especially during peak times. Local bus services may also operate, but their bike carriage policies vary and should be confirmed directly with the operator.
Yes, the Heart of Wales Line Trail, a 143-mile route, passes directly through Llandeilo. This trail explores the railway line, visiting various train stations, old railway lines, and viaducts, offering a unique long-distance touring experience.
For experienced cyclists seeking a challenge, the Llangadog and Myddfai loop from Llandeilo – Brecon Beacons National Park is a difficult 68.4 km trail with significant elevation gain. Another demanding option is the Carmarthen Quay loop from Ffairfach, which covers over 48 km.


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