3.9
(7)
55
riders
16
rides
Gravel biking around Llanishen Reservoir offers diverse no traffic gravel bike trails in the surrounding North Cardiff area. While direct cycling on paths immediately around the reservoirs is restricted due to ecological sensitivity and path width, the broader region provides extensive opportunities for gravel cyclists. The landscape features a mix of natural green spaces, woodlands, and varied terrain, including routes with views of Cardiff, the Taff Valley, and Caerphilly Mountain.
Last updated: May 17, 2026
4
riders
31.5km
02:12
510m
510m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(1)
23
riders
46.8km
03:46
540m
540m
The Caerphilly mountain loop from Cardiff offers a challenging gravel biking experience, covering 29.1 miles (46.8 km) with a significant 1775 feet (541 metres) of elevation gain. This difficult route…

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3.0
(1)
8
riders
96.9km
08:33
1,820m
1,820m
Embark on a challenging gravel biking adventure with the Cwmcarn loop from Cardiff, a route designed for experienced riders. This difficult 60.2-mile (96.9 km) journey will test your endurance, featuring…
4.7
(3)
8
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
5
riders
63.6km
04:21
970m
970m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Llanishen Reservoir
Great place to capture some photos of the River Taff. Scenic all year round
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0
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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Some gates are pain to get the bike through loud easy turn handapbares lift front wheel
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0
There are over 15 dedicated no-traffic gravel bike trails around Llanishen Reservoir featured in this guide. These routes offer a range of distances and challenges, ensuring there's something for various skill levels.
The gravel biking terrain around Llanishen Reservoir and the wider Cardiff area is quite varied. You can expect a mix of ancient Roman roads, remote drover's tracks, fire roads, and purpose-built cycle trails. While the paths directly around the reservoirs are restricted for cycling, the surrounding routes offer diverse surfaces, often rocky, making them suitable for year-round riding.
The routes in this guide range from moderate to difficult, requiring good to very good fitness. For example, routes like the Caerphilly mountain loop from Cardiff involve significant elevation gain over 46 km, while the Hengoed Viaduct loop from Ninian Park covers over 63 km with nearly 1000m of climbing. Be prepared for challenging ascents and descents.
While many routes in this guide are rated moderate to difficult, the broader region offers options. For those new to gravel biking or looking for a less strenuous ride, consider routes with lower elevation gains and shorter distances. Always check the route details on komoot for specific difficulty ratings and terrain descriptions to find the best fit for your family or skill level.
Wales is celebrated for its gravel riding, offering year-round opportunities. The diverse terrain, often rocky, holds up well in various conditions. However, for the most pleasant experience, spring and autumn generally offer milder temperatures and beautiful scenery. Always check local weather conditions before heading out, especially during winter months.
Many routes offer scenic views and pass by interesting landmarks. For instance, the Coed Craig Ruperra – View of Cardiff loop from Heath High Level provides views of Cardiff. Other routes might take you past historic sites like Castell Coch, or through natural areas with rich biodiversity. While cycling is restricted directly around Llanishen and Lisvane Reservoirs, the surrounding area is known for its ecological value, including SSSIs, and you might spot various wildlife.
Yes, many of the no-traffic gravel routes around Llanishen Reservoir are designed as circular loops, allowing you to start and end at the same point. For example, the Caerphilly mountain loop from Cardiff and the Blackweir Bridge and Weir – Coed Tranch-yr-Hebog Quarry loop from Ninian Park are excellent circular options.
Specific parking and public transport details vary by route starting point. Many routes begin from Cardiff, which has extensive public transport links and parking facilities. For routes starting closer to Llanishen Reservoir, there are visitor parking areas. Always check the individual route details on komoot for precise starting locations and recommended access points.
Many routes pass through or near towns and villages where you can find cafes and pubs. The Llanishen Reservoir visitor center itself has a cafe with views across the water, though cycling is restricted on the immediate reservoir paths. Planning your route with komoot allows you to identify points of interest, including refreshment stops, along your chosen trail.
The area is highly rated by the komoot community, with an average score of 3.9 stars. Reviewers often praise the diverse and challenging terrain, the sense of escape on traffic-free paths, and the beautiful Welsh countryside views. The opportunity to explore vast landscapes and wilderness, often on ancient tracks, is a significant draw.
Cycling is explicitly not permitted on the narrow footpaths directly surrounding Llanishen and Lisvane Reservoirs. This is due to their status as Sites of Special Scientific Interest (SSSI) and because the paths are typically 2 meters wide, which is deemed unsuitable for safe shared use with walkers. Cyclists are welcome to dismount and walk their bikes through the site if they wish to experience the reservoir paths on foot.


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