4.4
(35)
449
riders
70
rides
Mountain bike trails around Llanishen Reservoir offer varied terrain, encompassing green spaces, woodlands, and paths around the Victorian reservoirs. The area features a mix of general cycling routes that pass by the reservoir and extend into the surrounding region, providing options for different skill levels. Routes often include significant elevation changes, leading to viewpoints overlooking Cardiff or landmarks like Castell Coch. The landscape is characterized by its blend of urban proximity and natural habitats.
Last updated: July 6, 2026
6
riders
73.6km
04:59
910m
910m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
5.0
(1)
3
riders
24.8km
02:08
500m
500m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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4.3
(3)
12
riders
47.7km
03:05
580m
580m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4
riders
49.6km
04:03
910m
910m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
2
riders
33.3km
02:21
510m
510m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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This track has been improved, now wider and tarmacked.
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Always a nice ride across this section. Great views, but can be mucky in the winter.
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This father and son wrote the Welsh National Anthem in 1856. Evan wrote the lyrics and James composed the Melody.
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The diversion, as shown in the photos, around the new Taff's Well railway depot has now been removed.
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The Walnut Tree Viaduct spanned the valley between the ridges of the Garth and Castell Coch. The one remaining brick pillar is all that remains of this massive structure.
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Industrial landmark at a very busy road junction on the Taff Trail.
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The area around Llanishen Reservoir offers a diverse range of mountain bike trails, blending green spaces, woodlands, and paths that often loop around the Victorian reservoirs and extend into the wider region. While the reservoir itself is more geared towards general cycling and walking, the surrounding routes provide varied terrain suitable for mountain biking, including significant elevation changes and scenic viewpoints.
There are over 75 mountain bike trails available around Llanishen Reservoir. These routes cater to various skill levels, with 18 easy, 54 moderate, and 3 difficult options to explore.
Yes, there are 18 easy mountain bike trails in the Llanishen Reservoir area. These routes are generally less demanding, offering a good starting point for beginners or those looking for a more relaxed ride.
For experienced riders seeking a challenge, there are 3 difficult mountain bike trails in the area. One such route is the View of Castell Coch – Penallta Park signpost loop from Birchgrove, which covers nearly 50 km and features over 900 meters of elevation gain, typically taking around 4 hours to complete.
Absolutely. Many mountain bike routes in the area offer stunning views. For instance, the View of Cardiff – Forest Descent Path loop from Pontprennau provides scenic vistas of Cardiff. Other trails, like the View of Castell Coch – Taff Trail Junction loop from Birchgrove, pass by historic landmarks such as Castell Coch.
While the immediate paths around Llanishen Reservoir are excellent for general cycling and walking, many of the mountain bike routes in the broader area are moderate and may require good fitness. For family-friendly options, consider the easier trails available, which are generally less technical and have gentler gradients. Always check the route details on komoot for specific difficulty and terrain information to ensure it suits your family's skill level.
The Llanishen Reservoir area is a biodiversity hotspot, designated as a Site of Special Scientific Interest (SSSI). While mountain biking, you might encounter diverse flora and fauna in the surrounding woodlands, meadows, and scrub. The area is known for grass snakes, glow worms, and a variety of birds. Bird hides are also available for quiet observation, particularly around Lisvane Reservoir.
Yes, the Llanishen Reservoir visitor attraction, which opened in 2023, includes a new visitor centre. It is advisable to check their official website or local signage for current parking facilities and any associated fees for cyclists.
The new visitor centre at Llanishen Reservoir features a café that offers dining options with Welsh produce and spectacular views across the reservoirs. Additionally, the surrounding towns and villages will have various pubs and cafes where you can stop for refreshments after your ride.
The Llanishen Reservoir area can be enjoyed year-round, but spring and autumn often offer the most pleasant conditions for mountain biking with milder temperatures and beautiful scenery. Summer can be great, but trails might be busier. Winter riding is possible, but be prepared for potentially muddy conditions and shorter daylight hours. Always check local weather forecasts before heading out.
The mountain bike routes around Llanishen Reservoir are highly rated by the komoot community, with an average score of 4.3 stars from over 30 reviews. Reviewers often praise the varied terrain, the extensive forest sections, and the scenic views of Cardiff and landmarks like Castell Coch.
Yes, many of the mountain bike trails around Llanishen Reservoir are designed as loops. For example, the Coed Craig Ruperra – Ruperra Castle loop from Birchgrove is a moderate circular route covering over 33 km through woodlands and past historical sites.


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