4.3
(9)
111
riders
19
rides
Gravel biking around St Gwynno Forest offers diverse landscapes with a mix of wooded areas, meandering streams, and challenging terrain. The region is characterized by extensive forestry roads and fire tracks, providing varied surfaces from smooth gravel to more rugged mountain paths. These features make St Gwynno Forest a notable destination for gravel bike trails in South Wales. The area includes significant elevation changes and mixed-surface routes.
Last updated: July 3, 2026
4.5
(2)
3
riders
13.7km
00:57
240m
230m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
13
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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11
riders
47.4km
03:34
970m
970m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
64.5km
04:49
1,130m
1,130m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
8
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Cracking Cafe open, Sat Sun and Wed year round.
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Peaceful route. Opportunities to stop at Afan Argoed country park and the old Station at Cymmer.
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Great place great view right next door to the zip world and the Afan mountain bike trails.
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Park at Rhyslyn and use the cycleway to Afan trails as a useful warm up before hitting the climb or Penhydd or Y Wal
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Great fun on soft loose gravel. Steep decent on the loose or down the concrete acces path.
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You can enjoy lovely views of the town and Afon Valley from this high up viewpoint on Pontrhydyfen Viaduct. The viaduct itself was build in 1898 by the Port Talbot Railway.
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St Gwynno Forest offers a diverse network of nearly 20 gravel bike trails. These routes cater to various skill levels, from moderate paths to more challenging rides, providing extensive options for exploring the region's unique landscape.
The terrain in St Gwynno Forest is quite varied, featuring a mix of wooded areas, meandering streams, and significant elevation changes. You'll encounter extensive forestry roads and fire tracks, with surfaces ranging from smooth gravel to more rugged, boulder-strewn mountain paths. This makes it ideal for gravel bikes, cyclocross bikes, or mountain bikes.
While many routes in St Gwynno Forest offer challenging climbs and descents, there are options suitable for those looking for a more moderate experience. For example, the Waterfall – Nant Glydach Reservoir and Dam loop from Llanwonno is a moderate 8.5-mile trail that offers scenic views without extreme difficulty.
St Gwynno Forest is rich in natural beauty and points of interest. You can encounter beautiful waterfalls like Waterfall, serene reservoirs such as Lluest-wen Reservoir, and extensive wooded areas. From higher points, you might even catch panoramic views of the Brecon Beacons, including Pen-Y-Fan. The historic St Gwynno Church is also a significant landmark within the forest.
Many trails in St Gwynno Forest are suitable for walking dogs, but when cycling, it's important to keep your dog under control, especially on shared paths or near livestock. Always ensure your dog is well-behaved and consider local regulations regarding dogs on trails. The varied terrain and natural environment make it a great place for outdoor activities with your canine companion.
Yes, St Gwynno Forest offers routes that can be enjoyed by families. While some trails are challenging, there are also easier paths and forest tracks that are suitable for a family outing. The diverse network allows you to choose routes based on the experience level of your group, ensuring an enjoyable ride for everyone.
Gravel biking in St Gwynno Forest can be enjoyed year-round, but each season offers a different experience. Spring and autumn provide pleasant temperatures and beautiful scenery with changing foliage. Summer is great for longer days, while winter can offer a unique, rugged experience, though some paths might be muddier or more challenging due to weather conditions. Always check local weather forecasts before heading out.
Yes, the area around St Gwynno Forest has various options for refreshments and accommodation. You can find cafes and pubs in nearby villages. For longer stays, there are hotels, B&Bs, and self-catering accommodations available, particularly in towns like Ynysybwl, Llanwonno, or further afield in the Rhondda Cynon Taf region.
The komoot community highly rates the gravel biking experience in St Gwynno Forest, with an average score of 4.4 stars. Riders often praise the diverse landscapes, the mix of challenging climbs and descents, and the extensive network of forestry roads that provide a true off-road adventure. The scenic views and natural features like waterfalls and reservoirs are also frequently highlighted.
Yes, many of the gravel bike trails in St Gwynno Forest are designed as loops, allowing you to start and finish at the same point. Examples include the Rhigos Mountain Fire Roads – View of Treherbert Basin loop from Ton Pentre, which offers panoramic views, or the Barry Sidings Café – Aberfan Memorial Cairn loop from Ystrad Rhondda, traversing varied terrain.
Parking is generally available at various access points around St Gwynno Forest. Specific car parks can be found near popular trailheads or villages bordering the forest, such as Llanwonno or Ton Pentre. It's advisable to check for designated parking areas when planning your route to ensure convenient access to the trails.
Public transport options to the St Gwynno Forest area typically involve bus services to nearby towns and villages such as Ynysybwl, Llanwonno, or those within the Rhondda Fach and Rhondda Fawr valleys. From these points, you may need to cycle a short distance to reach the main forest trails. Check local bus timetables for the most up-to-date information on routes and schedules.


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