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United Kingdom
Wales
South Wales
Cardiff

Llanishen Reservoir

The best MTB trails around Llanishen Reservoir

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.

Best mountain bike trails around Llanishen…

Last updated: July 6, 2026

6

riders

#1.

Penallta Park signpost – Forest Descent Path loop from Llanishen

73.6km

04:59

910m

910m

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

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Hard

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

Hard

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Tips from the Community

Paul (JEMBC)
March 14, 2026, Llanishen Station Fenced Pathway

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.

1

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Industrial landmark at a very busy road junction on the Taff Trail.

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Andy Bryant
October 14, 2024, River Taff Weir

Great view of the weir from the bridge

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Great viewpoint from the bridge.

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Frequently Asked Questions

What kind of mountain bike trails can I expect around Llanishen Reservoir?

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.

How many mountain bike trails are available in the Llanishen Reservoir area?

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.

Are there any easy mountain bike trails suitable for beginners near Llanishen Reservoir?

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.

What are some challenging mountain bike trails for experienced riders?

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.

Can I find mountain bike routes with scenic views of Cardiff or local landmarks?

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.

Are there any family-friendly mountain bike routes around Llanishen Reservoir?

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.

What natural features or wildlife can I observe while mountain biking near Llanishen Reservoir?

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.

Is there parking available for cyclists near Llanishen 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.

Are there cafes or pubs near the mountain bike trails for a break?

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.

What is the best season for mountain biking around Llanishen Reservoir?

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.

What do other mountain bikers say about the trails in Llanishen Reservoir?

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.

Are there any circular mountain bike routes in the area?

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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