5.0
(5)
27
riders
4
rides
Mountain biking around Dyfnant Forest offers a network of trails through upland coniferous woodlands and areas of native deciduous trees. The region is characterized by rolling hills and green valleys, with numerous streams and natural features. Situated in north Powys, Mid Wales, the forest provides diverse terrain for mountain bikers, including sections with roots and rock slabs. Proximity to Lake Vyrnwy adds to the scenic appeal, with some routes offering views over the lake.
Last updated: May 16, 2026
5.0
(1)
6
riders
22.0km
01:53
440m
440m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
2
riders
16.8km
01:25
320m
320m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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5.0
(3)
11
riders
28.8km
02:46
720m
720m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
3
riders
31.2km
02:25
560m
560m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4
riders
43.7km
02:46
590m
590m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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The hills of the great Dyfnant Forest were once rode by Welsh hero Owain Glyndŵr, who led the rebellion against English rule in Wales during the 15th century. Today, the woodland is still enjoyed by those on horseback, as well as hikers on the Glyndŵr’s Way long-distance trail. The coniferous woodland here is part of the National Forest for Wales project.
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Llanwddyn is a small village beneath the Llanwddyn Dam on Lake Vyrnwy. The original village was flooded when the reservoir was created in the 1880s. There are a couple of accommodation options in the surroundings: the beautifully situated Lake Vyrnwy Hotel and Spa to the north-east and the Lake Vyrnwy campsite to the east.
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Gorgeous area. Be aware the road/trail on the south side (including access to/from Llanymawddwy) are currently closed due to damage from storm Darragh. See https://www.hdcymru.co.uk/our-visitor-sites/lake-vyrnwy/storm-darragh/ for more details.
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There is a little cafe above the main car park for a coffee and cake after the "gift shop" labelled walks. As usual, Komoot makes the walk easier than using signposts - remember to download to the phone app. Kayaking/canoeing around the lake is only possible for about half of it due to a protected bird sanctuary.
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The dam across the Vyrnwy Valley, Montgomeryshire, was the first large masonry dam, and was completed in 1888. Water from the reservoir supplies Liverpool, travelling there along a 70 mile aqueduct. They have a bike hire and cafe in the car part. You can hire a bike to ride around the lake the road surface is great with some spectacular views of the lake and dam. The dam at Lake Vyrnwy is often associated with practice bombing runs for Operation Chastise in The Second World War. Better known as the “Dambusters” raid, Lancasters of 617 Squadron breached the German Möhne and Eder dams and damaged the Sorpe dam in May 1943. However, the association with Lake Vyrnwy seems to be something of a local myth as the dam was never actually used for this purpose. So where did this story originate? It seems that at least one scene in the famous 1955 film, “The Dambusters” was shot at Lake Vyrnwy leading to the mistaken belief that the wartime RAF Lancaster bomber crews practiced there.
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Lake Vyrnwy (Welsh: Llyn Efyrnwy, pronounced [ɛˈvərnʊɨ] or Llyn Llanwddyn) is a reservoir in Powys, Wales, built in the 1880s for Liverpool Corporation Waterworks to supply Liverpool with fresh water. It flooded the head of the Vyrnwy (Welsh: Afon Efyrnwy) valley and submerged the village of Llanwddyn.
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Artisans Craft and Coffee shop provides food and drink including hot toasted baguettes, homemade cakes and scones and Kelly's Ice Cream. There is also a bike hire service here if you want to take on the 12 miles (20 km) of scenic road around the lake.
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This scenic well-surfaced track is a pleasant alternative to the road. It cuts through Dynant Forest.
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Dyfnant Forest offers a diverse mountain biking experience through extensive upland coniferous woodlands and areas of native deciduous trees. You'll encounter rolling hills, green valleys, and numerous streams. The trails are often natural, featuring elements like roots, rock slabs, and some steep sections, providing an engaging ride for those with good fitness.
While the routes listed in this guide are primarily moderate, Dyfnant Forest does offer trails suitable for various skill levels. Some sections are considered 'easy' with up to 1,000 ft of elevation gain and up to two hours in duration, making them suitable for families or those new to mountain biking. These trails provide a gentler introduction to the forest's natural beauty.
There are at least 5 mountain bike trails detailed in this guide for Dyfnant Forest, all rated as moderate. These routes offer varied distances and elevation gains, providing options for different preferences within the moderate difficulty range.
You'll ride through beautiful coniferous and deciduous woodlands, alongside pretty streams, and across rolling hills. The forest is close to Lake Vyrnwy, and some routes, like the Giants of Vyrnwy – Lake Vyrnwy Dam loop, offer attractive views over the lake and its impressive dam. You might also encounter landmarks like the Cerrig yr Helfa hunting stones on some of the wider forest tracks.
Yes, many of the mountain bike routes in Dyfnant Forest are circular. For example, you can explore the Coed Fachwen loop from Penyffordd Car Park (22.0 km) or the Dyfnant Forest – Glyndwr's Way loop from Penyffordd Car Park (16.1 km), both offering a complete loop experience.
The moderate trails in Dyfnant Forest typically range from 1.5 to 2.5 hours in duration. Elevation gains vary, with routes like the Dyfnant Forest loop from Llangadfan featuring around 545 meters of ascent over 30.1 km, while others like the Giants of Vyrnwy – Lake Vyrnwy Dam loop have about 564 meters of elevation over 27.5 km.
While this guide focuses on moderate routes, Dyfnant Forest does offer sections that cater to advanced riders. These 'hard' routes can feature over 3,000 ft of elevation gain and take more than five hours to complete, often including technical sections with roots, rock slabs, and steep chutes where you might need to push your bike.
The mountain bike routes in Dyfnant Forest are highly regarded by the komoot community, with an average rating of 5.0 stars from over 6 reviews. Many of the 88 mountain bikers who have explored the area praise the varied terrain, the natural feel of the trails, and the scenic beauty of the forest and its surroundings.
Yes, the picturesque Rhiwargor Waterfall is located at the northern end of Lake Vyrnwy, which is in close proximity to Dyfnant Forest. While not directly on the main mountain bike trails within the forest, it's a notable natural attraction in the wider area that can be visited.
Several routes, such as the Coed Fachwen loop and the Dyfnant Forest – Glyndwr's Way loop, start from Penyffordd Car Park, indicating available parking facilities. Other routes may start from car parks near Lake Vyrnwy, offering convenient access to the trails.
Dyfnant Forest is generally welcoming to dogs, especially on its extensive network of bridleways and off-road tracks. However, it's always recommended to keep dogs under control, particularly around livestock or wildlife, and to check specific trail regulations for any restrictions.
While specific cafes or pubs directly adjacent to the trails are not detailed, the Lake Vyrnwy Hotel, located near the forest, provides a spot for refreshments with fine views. For more options, nearby villages and towns would offer a selection of eateries.
Dyfnant Forest can be enjoyed year-round, but spring and autumn often offer the most pleasant conditions with milder temperatures and beautiful foliage. Summer provides longer daylight hours, while winter can be challenging with potentially wet and muddy trails, though the forest's natural features remain impressive.


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