4.1
(8)
72
riders
16
rides
Gravel biking around Pentwyn offers a diverse landscape characterized by rolling hills, river valleys, and a mix of open and wooded terrain. The region features varied elevations, including climbs towards local mountains and gentler paths along waterways. Gravel riders can expect routes that traverse both natural landscapes and areas with historical structures like viaducts and quarries.
Last updated: August 12, 2026
4.0
(1)
24
riders
46.8km
03:46
540m
540m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
3.0
(1)
7
riders
96.9km
08:33
1,820m
1,820m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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4.7
(3)
7
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
5
riders
62.9km
04:20
970m
970m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
10
riders
32.1km
02:11
500m
500m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Great place to capture some photos of the River Taff. Scenic all year round
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Nice easy flat ride. Can be busy with walkers and other cyclists, particularly on weekends. Early mornings are the best, with so much birdsong and wildlife. Take a moment to enjoy the view of the Weir, which usually has a row of gulls fishing on it.
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Gonna give this loop a go tomorrow- thanks for sharing
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This Weir is a wonderful home for birds as they wash their feet, and gossip about others' nests
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The white noise from the crashing water makes this a perfect place to tune out of the world. Unique place!
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Built in 1280, this castle has a fascinating life story. It is the second largest castle and grounds in UK, slightly smaller than Windsor castle. The water defenses are now home to plenty of birds and the grounds offer fantastic views of this stunning castle
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Some gates are pain to get the bike through loud easy turn handapbares lift front wheel
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There are over 25 gravel bike trails around Pentwyn, offering a diverse range of experiences. The komoot community has explored more than 100 of these routes, highlighting the area's popularity for gravel biking.
While many routes in Pentwyn feature challenging climbs, there are moderate options available. For instance, the Blackweir Bridge and Weir – Coed Tranch-yr-Hebog Quarry loop from Ninian Park is a moderate 21.2-mile trail that takes you through river paths and former quarry landscapes, suitable for those looking for a less strenuous ride.
Gravel rides in Pentwyn vary significantly. You can find shorter routes like the 21.2-mile Blackweir Bridge and Weir – Coed Tranch-yr-Hebog Quarry loop, which typically takes around 2 hours 22 minutes. Longer, more challenging routes, such as the 60.2-mile Cwmcarn loop from Cardiff, can take over 8 hours to complete.
The terrain around Pentwyn is diverse, characterized by rolling hills, river valleys, and a mix of open and wooded sections. You'll encounter varied elevations, from significant climbs towards local mountains to gentler paths along waterways. Routes often traverse natural landscapes and areas with historical structures like viaducts and quarries.
Yes, Pentwyn offers several challenging routes. The Caerphilly mountain loop from Cardiff is a difficult 29.1-mile trail featuring significant climbs and panoramic views. Another extensive and challenging option is the 60.2-mile Cwmcarn loop from Cardiff, known for its demanding ascents and varied forest trails.
Many trails offer scenic views and pass by interesting landmarks. For panoramic vistas, consider routes that climb towards Caerphilly Mountain Summit or Garth Summit. You can also explore historical sites like Caerphilly Castle, which is featured on the River Rhymney Cycle Trail – Caerphilly Castle loop.
Yes, many of the gravel bike routes around Pentwyn are designed as circular loops, allowing you to start and finish at the same point. Examples include the Caerphilly mountain loop from Cardiff and the Hengoed Viaduct – Hengoed Viaduct loop from Ninian Park.
The area is highly rated by the komoot community, with an average score of 4.25 stars from over 10 reviews. Reviewers often praise the diverse landscape, which includes rolling hills, river valleys, and wooded sections, as well as the variety of routes suitable for different ability levels.
Absolutely. The region is rich in history, and several gravel routes incorporate historical structures. For example, the Hengoed Viaduct – Hengoed Viaduct loop from Ninian Park takes you past the impressive Hengoed Viaduct. You can also find trails that lead through former quarry landscapes, offering a glimpse into the area's industrial past.
Many routes in Pentwyn traverse wooded sections and river valleys, providing excellent opportunities to enjoy nature. The Cwmcarn loop from Cardiff, for instance, explores the Cwmcarn area, known for its varied forest trails and natural beauty, making it a great choice for nature lovers.
Gravel biking in Pentwyn can be enjoyed throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant scenery, while summer provides longer daylight hours. Even in winter, many trails remain accessible, though conditions can be muddier, especially in wooded or lower-lying areas.


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