4.2
(41)
3,368
riders
5
rides
Road cycling around St Gwynno Forest offers varied terrain, featuring both challenging climbs and scenic routes. The landscape is characterized by mixed woodlands and notable water features, including reservoirs and waterfalls. Panoramic viewpoints provide vistas of the surrounding region, including the Brecon Beacons. This area provides a range of no traffic road cycling routes suitable for different skill levels.
Last updated: July 6, 2026
5.0
(2)
82
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
3.0
(2)
61
riders
43.1km
02:27
500m
510m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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28
riders
29.3km
01:26
370m
370m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
11
riders
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
4
riders
24.0km
01:16
450m
450m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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Popular around St Gwynno Forest
lovely . ( no phone signal ) bring yourself a drink and enjoy the view
1
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When coming off the mountain to go down towards the car park it’s quite a steep scramble and can be slippery
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Capel Gwladys stands as a remarkable historical site that embodies the rich tapestry of Welsh heritage and spirituality. Nestled in the serene landscape of Bargoed, this medieval chapel, believed to have been founded by St. Gwladys, is a testament to the region's deep-rooted cultural significance. Visitors are captivated by its ancient foundations, which have withstood the test of time for over 1,600 years, providing a unique glimpse into the past. The chapel’s historical narratives, steeped in local folklore, highlight the life of St. Gwladys and her influential role in Welsh history, including her connections to significant figures such as King Arthur and other saints. The site is not only an archaeological treasure but also a peaceful retreat for those seeking connection with nature and history alike. The picturesque setting, surrounded by lush green fields and stunning mountain views, enhances the experience of visiting Capel Gwladys. It serves as a perfect starting point for exploring local history, allowing visitors to delve into the tales of courage and faith that define the area. However, to maintain its charm, it is essential to protect the site from vandalism and littering, ensuring that future generations can appreciate its beauty and significance. Capel Gwladys is more than just a historical site it is a sanctuary where the stories of the past come alive, inviting everyone to reflect on the enduring legacy of Welsh culture. The monument comprises the remains of a medieval chapel located on the open moorland of Gelligaer Common.
2
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cute little transfer between the valley sides, watch out for the absolute walls on either side though.
0
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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.
0
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Great views and a very large plug hole at the end of the Dam
0
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Handy place to stop for refreshments in either direction
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There are 5 dedicated no-traffic road cycling routes around St Gwynno Forest featured in this guide. These routes offer a range of distances and difficulties, ensuring a peaceful ride away from busy roads.
Yes, there is one easy route perfect for beginners or families looking for a relaxed ride. The Penallta Park Bike Path – Penallta Park signpost loop from Treharris is a great option, offering a gentle 11.4 km ride with minimal elevation gain.
The no-traffic road cycling routes in St Gwynno Forest primarily feature good road surfaces, with some dedicated cycle paths and quiet residential streets. While focused on road cycling, the broader area is known for varied terrain, including challenging climbs like the Bryn Du and Blaenllechau, which offer engaging switchbacks and rewarding descents.
Yes, all the routes listed in this guide are circular, allowing you to start and finish at the same point. For example, the Blaen-y-Glyn Climb – Talybont Reservoir West Shore loop from Merthyr Tydfil is a moderate 51 km circular route that includes a significant climb.
St Gwynno Forest is rich in natural beauty and historical sites. Along your rides, you might encounter diverse woodlands, reservoirs like Lluest-wen and Clydach, and even waterfalls such as Pistyll Goleu and the Waterfall highlight. The medieval St Gwynno Church is also a notable historical landmark in the area.
While specific public transport links directly to the start points of all routes can vary, the towns near St Gwynno Forest, such as Merthyr Tydfil and Treharris, generally have public transport connections. It's advisable to check local bus or train schedules for the most convenient access to your chosen starting point.
Parking is generally available in the towns and villages surrounding St Gwynno Forest, such as Merthyr Tydfil and Treharris, which serve as common starting points for many routes. Specific parking facilities within the forest or at trailheads may vary, so checking local information for your chosen route's start is recommended.
Spring and autumn often provide the most pleasant conditions for road cycling in St Gwynno Forest, with milder temperatures and beautiful scenery as the foliage changes. Summer can also be excellent, especially for enjoying the panoramic views. While winter cycling is possible, be prepared for colder weather and potentially wet conditions.
Yes, the towns and villages surrounding St Gwynno Forest, including Merthyr Tydfil and Treharris, offer various cafes and pubs where you can refuel and relax. Many routes pass close to or through these settlements, providing convenient opportunities for a break.
The no-traffic road cycling routes around St Gwynno Forest are highly rated by the komoot community, with an average score of 4.2 stars. Reviewers often praise the peacefulness of the routes, the challenging climbs, and the stunning panoramic views, including clear vistas of the Brecon Beacons.
Absolutely. The St Gwynno Forest area is renowned for its demanding ascents. While this guide focuses on no-traffic routes, the region itself features challenging climbs like the Bryn Du Climb from Aberdare and the Blaenllechau Climb, which are praised for their good road surfaces and switchbacks, taking cyclists to rewarding viewpoints.
Many routes in the St Gwynno Forest area offer spectacular panoramic views. On clear days, you can enjoy extensive vistas of the Brecon Beacons, including Pen-Y-Fan, and even catch glimpses of the Bristol Channel. The View of the Brecon Beacons from St Gwynno Forest is a particularly popular viewpoint.


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