5.0
(2)
16
riders
4
rides
Gravel bike trails around Ystradgynlais offer a diverse landscape at the southern edge of the Brecon Beacons National Park. The area features a mix of rugged natural terrain, including access to mountain ranges like the Black Mountain, and reclaimed industrial sites now transformed into green spaces. Riders can expect varied surfaces, from gravelly roads and bridleways to former railway lines and forest tracks. The region is characterized by river valleys, such as the River Tawe, and woodlands, providing a range…
Last updated: June 29, 2026
5.0
(1)
4
riders
21.2km
01:50
410m
410m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
12.7km
01:02
150m
150m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
5
riders
59.4km
03:34
240m
240m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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This is a great section of NCN 4 which crosses over the River Neath parallel to the elevated M4 motorway. It's quite an industrial stretch but the views are great, and the cycle path is segregated from the road.
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Swansea Marina, is the place "where the city meets the sea", located behind the Swansea barrage at the mouth of the River Tawe.
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Ynys-yr-Allor, lock No 12 on the Neath Canal, the name means 'Meadow of the Altar', so it's possible that this was once a religious site.
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Based on komoot data, there are 5 gravel bike trails around Ystradgynlais. These routes offer a range of experiences, from easy canal paths to more challenging rides with significant elevation gain.
The region offers a diverse mix of terrain, from gravelly roads and bridleways to former railway lines and forest tracks. You'll find routes along river valleys like the River Tawe, through reclaimed industrial sites now green spaces, and with access to the rugged natural features of the Brecon Beacons National Park.
Yes, there are easier options. For instance, the Resolven Canal Basin – Ynys Yr Allor Lock Gates loop from Glynneath is an easy 7.9-mile (12.7 km) path offering a relatively flat ride through a scenic canal basin area. The Amman Valley Cycleway also provides a traffic-free, mostly flat path along the River Amman, suitable for gentler rides.
For a more demanding ride, consider the Canal Lock Gates – Aberdulais Stone Bridge loop from Aberdulais. This 36.1-mile (58.2 km) route features significant elevation gain, making it a difficult option for experienced gravel bikers.
The trails offer access to stunning natural beauty. You can explore areas near the Black Mountain, with peaks like Fan Brycheiniog, and dramatic escarpments such as Picws Du overlooking Llyn y Fan Fach. The region is also known for its waterfalls, including the impressive Henrhyd Falls. You might also encounter highlights like Llyn y Fan Fach or Llyn y Fan Fawr.
Absolutely. Many routes offer panoramic views, especially those venturing into the Brecon Beacons National Park. You can find stunning vistas from higher elevations, such as the View of the Central Beacons from the Cattle Grid, or from summits like Picws Du, which overlooks Llyn y Fan Fach.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the diverse landscapes, from serene canal paths to rugged mountain terrain, and the unique experience of riding through reclaimed industrial sites that have transformed into beautiful green spaces.
Yes, many of the gravel routes around Ystradgynlais are designed as loops. For example, the Canal Lock Gates – Aberdulais Stone Bridge loop from Aberdulais and the Canal Gravel Path – Canal Lock Gates loop from Glynneath are popular circular options, allowing you to start and finish at the same point.
Ystradgynlais offers good year-round riding conditions, as many of Wales's gravel roads tend to be rocky rather than muddy. However, spring and autumn provide pleasant temperatures and vibrant scenery. Summer is also excellent, while winter rides can be challenging but rewarding, especially in the more remote mountain areas.
Ystradgynlais itself is served by local bus routes. While direct public transport to specific trailheads might be limited, you can often reach the town center via bus and then cycle to nearby starting points. For detailed information on local transport, it's best to check regional bus schedules.
Parking availability varies by trailhead. Many routes that start in or near towns like Aberdulais or Glynneath will have public parking options. For routes venturing into the Brecon Beacons, designated car parks are often available at popular access points. Always check local signage for parking regulations.
While specific cafes or pubs directly on every trail are not guaranteed, routes that pass through or near villages and towns will offer opportunities for refreshments. Ystradgynlais and surrounding communities provide various options for food and drink to refuel after your ride.
Many bridleways and public rights of way in the area are dog-friendly, provided dogs are kept under control, especially around livestock. Always check specific trail regulations and be mindful of wildlife. The Amman Valley Cycleway, for example, is generally suitable for dogs on a lead.


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