3.9
(7)
67
riders
16
rides
Gravel biking around Llanishen Reservoir offers a diverse landscape characterized by woodlands, valleys, and hills. The region features varied terrain suitable for gravel bikes, including paths through areas like Coed Craig Ruperra and the Taff Valley. Routes often include ascents over hills such as Caerphilly Mountain, providing elevation changes. The area provides a mix of natural surfaces and established trails for gravel exploration.
Last updated: July 2, 2026
4
riders
31.5km
02:12
510m
510m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
9
riders
26.9km
01:57
560m
560m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.0
(1)
24
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…
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)
7
riders
Moderate gravel ride. 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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Gonna give this loop a go tomorrow- thanks for sharing
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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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The weir spans the River Taff, which flows directly through the heart of South Wales. It's a nice place to stop and refuel with picnic benches and a peaceful atmosphere.
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The footbridge over the Taff here was built in the 1980s by Cardiff University in tandem with development of nearby student accommodation. Engineering students were involved in the bridge project.
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Great viewpoint up and down the river and the weir. Cyclist's have to push!
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There are over 25 gravel bike routes available around Llanishen Reservoir, offering a variety of experiences for different skill levels. The komoot community has explored these trails over 70 times, contributing to an average rating of 4.1 stars.
The gravel biking trails around Llanishen Reservoir primarily cater to moderate and difficult ability levels. You'll find 9 moderate routes and 16 difficult routes, featuring varied terrain, including ascents over hills like Caerphilly Mountain.
While the majority of routes are rated moderate to difficult, some of the moderate trails, such as the Blackweir Bridge and Weir – Coed Tranch-yr-Hebog Quarry loop from Ninian Park, can be suitable for those with some gravel biking experience looking for a less strenuous ride. These routes often feature a mix of established trails and natural surfaces.
For those seeking a longer challenge, the Cwmcarn loop from Cardiff is a significant ride at nearly 97 km, typically taking over 8 hours. Another substantial option is the View of the Taff Valley – Aberfan Memorial Cairn loop from Birchgrove, which is about 47.7 km long.
Yes, many of the popular gravel bike routes in the area are circular. Examples include the Coed Craig Ruperra – View of Cardiff loop from Heath High Level, the Caerphilly mountain loop from Cardiff, and the Blackweir Bridge and Weir – Coed Tranch-yr-Hebog Quarry loop from Ninian Park, allowing you to start and finish at the same point.
You can expect a diverse landscape featuring woodlands, river valleys, and challenging hill climbs. The terrain includes a mix of natural surfaces and established trails, with notable sections through areas like Coed Craig Ruperra and the Taff Valley, often involving ascents over hills such as Caerphilly Mountain.
Spring and autumn generally offer the most pleasant conditions for gravel biking around Llanishen Reservoir, with milder temperatures and beautiful foliage. While trails are accessible year-round, be prepared for potentially muddy conditions after rain, especially in winter, due to the natural surfaces.
Given the varied terrain and potential for longer rides, it's advisable to bring appropriate gear. This includes a well-maintained gravel bike, a helmet, sufficient water and snacks, a repair kit (spare tube, pump, multi-tool), and navigation tools. Layered clothing is recommended to adapt to changing weather conditions.
While specific establishments directly on the trails are limited, the Llanishen Reservoir area and nearby Cardiff offer various options for refreshments. You'll find cafes and pubs in surrounding villages and towns, perfect for a post-ride meal or a coffee break. Planning your route to pass through these areas can enhance your experience.
The komoot community highly rates the gravel biking experience around Llanishen Reservoir, with an average score of 4.1 stars. Riders often praise the diverse landscape, the mix of challenging climbs and scenic descents, and the opportunity to explore woodlands and valleys away from busy roads. The variety of routes, from moderate to difficult, is also a key highlight.
Yes, several routes provide excellent views. The Coed Craig Ruperra – View of Cardiff loop from Heath High Level offers vistas towards Cardiff, while the View of the Taff Valley – Aberfan Memorial Cairn loop from Birchgrove provides extensive views of the Taff Valley, along with a significant memorial cairn.


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