4.4
(12)
140
riders
11
rides
Gravel biking around Cwmbach offers access to the verdant Welsh countryside of Rhondda Cynon Taf, characterized by diverse landscapes. The region features a mix of woodlands, river valleys, and ascents into surrounding hills, providing varied terrain for gravel cyclists. Ancient Roman roads, remote drover's tracks, and fire roads contribute to a network of routes suitable for gravel bikes.
Last updated: July 3, 2026
5.0
(1)
44
riders
57.8km
03:35
910m
910m
Hard gravel ride. Very 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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4.0
(2)
16
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(2)
9
riders
43.1km
02:47
630m
630m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
11
riders
47.4km
03:34
970m
970m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Pentwyn Reservoir is the smaller sister to Pontsticill Reservoir, both being separated by a causeway going towards the old Dolygaer outdoor centre. It is a very popular spot with fishermen and outdoor enthusiasts alike. The reservoir is used daily for a mix of watersports such as paddle boarding, kayaking, canoeing and raft building. It is in a beautiful setting, and you have great views north towards Pen y Fan and nice walks nearby.
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lovely . ( no phone signal ) bring yourself a drink and enjoy the view
1
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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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the lower reservoir has a nice flat road next to it, a welcome relief after the lumpy roads that lead to it from either direction.
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Great views and a very large plug hole at the end of the Dam
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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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A wooden drawbridge carried the road over the canal and was replaced by a fixed bridge after navigation on the canal ceased in the 1930s. Before the canal reopened to boats in 1970, a steel drawbridge with an electric operating mechanism was installed. There are four other drawbridges along the canal to the west. They are for farmers to access fields and are less elaborate than the one at Talybont. Drawbridges saved the canal company the expense of building stone bridges over the canal at these locations.
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There are over a dozen gravel bike trails around Cwmbach listed on komoot, offering a variety of experiences. The majority of these, 11 out of 13, are rated as difficult, with 2 moderate options available.
Cwmbach's gravel trails feature diverse terrain, including ancient Roman roads, remote drover's tracks, fire roads, and purpose-built cycle paths. You'll encounter woodlands, picturesque riverside paths, and ascents into the surrounding hills. The routes are generally described as rocky rather than muddy, suggesting good year-round rideability.
While most routes are rated difficult, the area does offer some moderate options that might be suitable for families with older, experienced riders. For example, the Pontsticill Reservoir – Pontsticill Reservoir loop from Cefn-coed-y-cymmer is a moderate 30.3 km trail that explores reservoir landscapes.
The trails often pass by significant natural features. You can explore areas like the Cwmbach Community Wetlands, Dare Valley Country Park, and Llwyn-on Reservoir. Specific highlights include viewpoints like Giant's Bite and Tarren y Bwllfa, the historic Pontsarn Viaduct, and the tranquil Parc Cwm Darran Waterfall.
Many of the natural trails and fire roads in the Cwmbach area are suitable for cycling with dogs, provided they are well-behaved and kept under control, especially around wildlife or livestock. Always check local regulations for specific areas like nature reserves or country parks. The general open nature of the Welsh countryside often accommodates dog walkers and cyclists.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 15 reviews. Reviewers often praise the varied terrain, the challenging ascents, and the scenic beauty of the Welsh countryside, particularly the reservoir loops and mountain fire roads.
Yes, for experienced riders looking for a challenge, Cwmbach offers several longer, difficult routes. The Talybont Reservoir – Pontsticill Reservoir loop from Pentre-bach is a demanding 66.3 km trail with significant elevation gain, perfect for a full day's adventure.
Parking is generally available at key access points for popular trails and country parks. For routes starting near reservoirs or country parks like Dare Valley, designated parking areas are usually provided. For specific trailheads, it's advisable to check the individual route details on komoot for recommended starting points and parking information.
Cwmbach is situated in Rhondda Cynon Taf, an area with some public transport links. While direct access to every trailhead by public transport might be limited, train stations in nearby towns like Merthyr Tydfil or Ton Pentre can serve as starting points for some routes, such as the Talybont Reservoir – Pontsticill Reservoir loop from Merthyr Tydfil. Always check local bus and train schedules for bike carriage policies.
While Cwmbach itself is a smaller community, the surrounding towns and villages, particularly those near popular trailheads or attractions like Dare Valley Country Park, offer options for refreshments. You'll find local pubs and cafes where you can refuel after your ride. It's a good idea to plan your route to pass through or near these amenities.
Wales is known for its varied weather, but the rocky nature of Cwmbach's gravel trails often makes them rideable year-round. Spring and autumn offer pleasant temperatures and beautiful scenery. Summer provides longer daylight hours, while winter rides can be invigorating, though some higher elevation or less maintained tracks might be more challenging due to weather conditions.
Yes, the Rhigos Mountain Fire Roads – View of Treherbert Basin loop from Ton Pentre is a difficult 33.7 km route that specifically utilizes fire roads and provides impressive views of the Treherbert Basin, offering a rewarding experience for those seeking panoramic vistas.


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