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United Kingdom
Wales
South Wales
Pembrokeshire

Cwm Gwaun

The best MTB trails around Cwm Gwaun

3.8

(23)

219

riders

14

rides

Mountain biking around Cwm Gwaun offers exploration through a distinctive V-shaped valley, carved by glacial meltwaters, featuring ancient woodlands and the meandering River Gwaun. The terrain includes quiet country lanes, wooded slopes, and fields, with some routes extending towards the Preseli Hills. While not known for technical singletrack, the area provides off-road cycling opportunities on varied surfaces, including minor roads with occasional steep gradients.

Best mountain bike trails around Cwm Gwaun

  • The most popular mountain bike trail is Fishguard and…

Last updated: May 23, 2026

5.0

(2)

5

riders

#1.

Fishguard and Cwm-yr-Eglwys Bay loop — Parc Cenedlaethol Arfordir Penfro / Pembrokeshire Coast National Park

28.7km

02:27

620m

620m

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

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Moderate

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

Hard
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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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Popular around Cwm Gwaun

Newport to Cemaes Head – Pembrokeshire walks

Preseli Hills – Pembrokeshire walks

Fishguard and Gwaun Valley – Pembrokeshire walks

Hiking around Cwm Gwaun

Cycling around Cwm Gwaun

Running Trails around Cwm Gwaun

Road Cycling Routes around Cwm Gwaun

Other adventures around Cwm Gwaun

Newport to Cemaes Head – Pembrokeshire walks

Hiking Collection by

Pembrokeshire Coast

Tips from the Community

Daniel Kurth
June 17, 2025, Ruins of St Brynach's Church, Cwm-yr-Eglwys

This beautiful and easy hike is perfect for escaping everyday life and enjoying nature to the fullest. The route doesn't have too much elevation gain, making it ideal for less experienced hikers or a relaxed excursion. Sturdy footwear is recommended, however, as several sections lead over unpaved paths. A special highlight: Along the way, you'll pass a beautiful beach, perfect for a swim or simply relaxing. Ideal for anyone looking to combine relaxation, exercise, and a bit of sea air. Tip: Don't forget your swimsuit!

Translated by Google

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Emily
September 22, 2024, Foel Feddau

Lovely views along Preselis

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A wonderfully wild bridleway that runs along the summit ridge of the Preseli hills. Best ridden from west to east so that it's predominantly downhill and much better in dry weather, it gets a bit boggy in the winter.

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Great fun. Fast easy gravel tracks

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Cwm-yr-Eglwys is a small and sandy cove with a stream running through the middle on the eastern side of Dinas Island. The ruins of St Brynach's church, which was washed away in the almighty storm of 1859, overlook the beach.

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A picturesque area of Fishguard on the harbour which is lined with fisherman's cottages and boats.

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At the end of the road you will find Cwm-yr-Eglwys, a sandy cove with a stream running through the middle, popular with boat users. Above the beach is the end wall of a chapel. The rest was washed away in the enormous storm of 1859. There is a 10ft high wall surrounding the top of the beach, making it very sheltered.

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Fun, fast gravel track descent.

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Frequently Asked Questions

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

Cwm Gwaun offers a diverse range of terrain, from quiet country lanes along the valley floor to unpaved sections and wooded slopes. You'll encounter varied surfaces, including minor roads with occasional steep gradients, especially as routes extend towards the surrounding Preseli Hills. The valley itself is a unique Ice Age formation, providing a picturesque backdrop to your ride.

Are there mountain bike trails suitable for beginners in Cwm Gwaun?

Yes, Cwm Gwaun has trails suitable for beginners. For an easier ride, consider the Pantmaenog Forest and Rosebush Quarry loop, which is approximately 9.8 km long and takes about 58 minutes to complete. This route offers a gentle introduction to mountain biking in the area.

What are some challenging mountain bike routes in Cwm Gwaun?

For experienced riders seeking a challenge, the Fishguard and Preseli Hills loop is a difficult route spanning 72.0 km. This trail explores the higher elevations of the Preseli Hills, providing significant elevation gain and expansive views, typically taking over 6 hours to complete.

Can I find circular mountain bike routes in Cwm Gwaun?

Yes, many of the mountain bike routes in Cwm Gwaun are circular. Examples include the Fishguard and Cwm-yr-Eglwys Bay loop, a moderate 28.7 km route, and the Bedd Arthur Stone Circle – Carn Menyn loop, which is 39.4 km long. These loops allow you to start and finish at the same point, making logistics easier.

What natural attractions can I see while mountain biking in Cwm Gwaun?

The Cwm Gwaun area is rich in natural beauty and historical sites. Along your rides, you might encounter viewpoints like Carningli Mountain or Foel Drygarn Hillfort and Cairns. Other notable natural monuments include Foel Cwmcerwyn summit and Dinas Head, offering dramatic coastal and inland scenery.

Are there any family-friendly mountain bike trails in Cwm Gwaun?

While Cwm Gwaun offers a mix of difficulties, the general terrain includes quiet country lanes and varied surfaces that can be suitable for families. The Gwaun Valley Trail, part of National Cycle Network Route 82, is described as a peaceful and easy-to-cycle path along the valley floor, which could be a good option for families looking for a less strenuous ride.

What do other mountain bikers say about the trails in Cwm Gwaun?

The mountain bike trails in Cwm Gwaun are highly rated by the komoot community, with an average score of 3.8 stars from over 20 reviews. Riders often praise the area for its unique Ice Age valley landscape, the serene environment of its heavily wooded slopes, and the diverse terrain that keeps rides engaging.

Is Cwm Gwaun suitable for mountain biking if I'm looking for technical singletrack?

Cwm Gwaun is not primarily known for technical singletrack. The area provides off-road cycling opportunities on varied surfaces, including minor roads, wooded slopes, and fields, with some routes extending into the Preseli Hills. If you're seeking purpose-built, high-grade technical mountain biking trails, other locations in Wales like Afan Forest Park or Coed y Brenin might be more suitable.

What is the best time of year to go mountain biking in Cwm Gwaun?

The diverse terrain of Cwm Gwaun, with its wooded slopes and varied surfaces, can be enjoyed throughout much of the year. Spring and autumn offer pleasant temperatures and beautiful scenery with changing foliage. Summer provides longer daylight hours, while winter rides might be possible, though conditions can be wetter and more challenging on unpaved sections.

Are there any places to explore or points of interest along the mountain bike routes?

Yes, Cwm Gwaun is rich in historical and cultural significance. Along the trails, you can find ancient pillar stones and churches. The valley also has a strong local tradition, with some families celebrating New Year (Hen Galan) on January 13th. The hamlet of Pontfaen is one such place to explore, offering a glimpse into the valley's unique heritage.

Where can I find more information about the Gwaun Valley Trail?

For more details on the Gwaun Valley Trail, which is part of National Cycle Network Route 82 and offers a peaceful ride along the valley floor, you can visit the Pembrokeshire County Council's cycling information page: Cycle Pembrokeshire - Gwaun Valley Trail.

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