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United Kingdom
Wales
South Wales

Tongwynlais

The best MTB trails around Tongwynlais

4.4

(44)

600

riders

85

rides

Mountain biking around Tongwynlais features a landscape characterized by rolling hills, dense woodlands, and river valleys. The area is situated near the Taff Trail, providing access to a network of paths suitable for various skill levels. Riders can expect a mix of challenging climbs, such as those found on Caerphilly Mountain and Garth Summit, alongside more gentle riverside routes. The terrain offers diverse riding experiences, from open common land to sheltered forest tracks.

Best mountain bike trails around Tongwynlais

  • The…

Last updated: April 23, 2026

4.5

(4)

14

riders

#1.

Taffs Well, Caerphilly mountain and Cefn Onn loop

27.4km

02:21

500m

500m

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

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Moderate

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy
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Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy

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

Moderate

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

Moderate
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Tips from the Community

Andy Lewis MTB 🇬🇧
July 13, 2025, Start/End of the New Taff Trail Section

start of the new part of the taff trail

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Each lock is crossed by a Bascule bridge, to carry pedestrians and vehicles across. These are lifted for boats to pass. The weight of the bridge deck is counterbalanced by an overhead weight on the opposite side of the pivot. Five sluice gates control the level of water in the Bay. Each sluice gate is 9 metres wide and 7.5 metres high. The sluices open to maintain the level of the Bay, and close when the estuary level is higher than the Bay to prevent seawater entering the freshwater lake.

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with Folded artitecture

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Llandaff Cathedral is magnificent building nestled within the small community. There are also other historical buildings close by and it is worth a visit. Not from the city centre and the Taff Trail. Beautiful scenes in the autumn too as the leaves change colour.

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Two options available at the fork point.

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I just wish there were even more bridges over the River Taff. Each crossing over has its unique and wonderful views. This one is no exception!

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Wonderful bridge spanning the River Taff

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The Garth has a nice flat top with views across the valleys. Lots of sheep grazing too (March). Also a number of mounds provide some cover from the wind if a break is in order

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Frequently Asked Questions

How many mountain bike trails are available around Tongwynlais?

There are over 80 mountain bike trails around Tongwynlais, offering a wide range of options for different skill levels. You'll find routes ranging from easy riverside paths to challenging climbs over local mountains.

Are there easy mountain bike trails suitable for beginners in Tongwynlais?

Yes, Tongwynlais offers nearly 20 easy mountain bike trails perfect for beginners or those looking for a relaxed ride. A great option is the Cardiff Bay Barrage Locks – Blue Bridge, Radyr loop from Radyr, which follows the Taff Trail and offers scenic views along the river.

What are some challenging mountain bike trails for advanced riders near Tongwynlais?

For advanced riders seeking a challenge, Tongwynlais has several difficult trails, alongside many moderate options that feature significant climbs. The Taffs Well, Caerphilly mountain and Cefn Onn loop is a moderate trail that includes varied terrain and climbs over Caerphilly Mountain, providing a good test for experienced riders.

Are there family-friendly mountain bike trails in Tongwynlais?

Yes, many of the easy trails around Tongwynlais are suitable for families. Routes along the Taff Trail, such as the Cardiff Bay Barrage Locks – Blue Bridge, Radyr loop from Radyr, offer relatively flat and well-maintained paths, ideal for a family outing.

What is the typical length of mountain bike trails near Tongwynlais?

Mountain bike trails near Tongwynlais vary significantly in length. You can find shorter routes, like the Gwaelod Y Garth Inn – View From Garth Mountain loop from Nantgarw at about 12.5 km (7.8 miles), which takes around an hour. Longer trails, such as the Cardiff Bay Barrage Locks – Blue Bridge, Radyr loop from Radyr, can extend to over 33 km (20.7 miles) and take nearly two hours to complete.

Are there circular mountain bike routes available in Tongwynlais?

Yes, many mountain bike trails in Tongwynlais are designed as circular routes, allowing you to start and finish at the same point. Examples include the Garth Summit – Gwaelod Y Garth Inn loop from Tongwynlais and the Taffs Well, Caerphilly mountain and Cefn Onn loop.

What kind of viewpoints can I expect along mountain bike trails in Tongwynlais?

The trails around Tongwynlais offer several excellent viewpoints, particularly from the higher elevations. You can enjoy panoramic vistas from Garth Summit and Caerphilly Mountain Summit, showcasing the rolling hills and dense woodlands of the region.

What do other mountain bikers enjoy most about mountain biking in Tongwynlais?

The mountain biking experience in Tongwynlais is highly rated by the komoot community, with an average score of 4.4 stars from over 40 reviews. Riders often praise the varied terrain, which includes challenging climbs and scenic riverside paths, as well as the extensive network of trails that cater to different abilities.

Are there any historical landmarks or attractions near the mountain bike trails?

Yes, the area around Tongwynlais is rich in history and features several notable landmarks. You can find impressive castles like Castell Coch, which is very close to Tongwynlais, and the grand Caerphilly Castle. Other attractions include St Fagans National Museum of History and Cardiff Castle, offering interesting diversions off the trails.

What kind of terrain can I expect on mountain bike trails in Tongwynlais?

The terrain around Tongwynlais is quite diverse, characterized by rolling hills, dense woodlands, and river valleys. You'll encounter a mix of challenging climbs, such as those found on Caerphilly Mountain and Garth Summit, alongside more gentle riverside routes. The trails offer everything from open common land to sheltered forest tracks.

Are there any hidden gem mountain bike trails in Tongwynlais?

While the most popular routes are well-known, exploring some of the less frequented trails can reveal hidden gems. The region's extensive woodlands and river valleys mean there are always new paths to discover, often offering quieter sections away from the main routes. Look for trails that venture deeper into the forest or along less-trafficked sections of the Taff Trail for a more secluded experience.

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