4.3
(15)
129
riders
11
rides
Mountain bike trails around Llyn Alwen navigate a diverse landscape within the Hiraethog Forest, offering a mix of coniferous woodlands, open moorland, and scenic reservoir shorelines. The terrain features well-maintained forestry tracks and surfaced paths, providing varied riding experiences. Riders can expect gentle gradients around the reservoir and more undulating sections through the surrounding forest. This area is characterized by its blend of natural beauty and accessible routes.
Last updated: June 24, 2026
2
riders
43.8km
02:58
760m
760m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
44.1km
03:32
770m
770m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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4.0
(2)
23
riders
48.1km
04:06
740m
740m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
5.0
(2)
32
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
2
riders
44.3km
03:35
580m
580m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Often referred to as the "gateway to Snowdonia," Betws-y-CoedClick to open side panel for more information is a charming alpine-style village in North Wales that feels like it’s been plucked straight from a Victorian postcard. It’s a place where stone bridges cross bubbling rivers and the air always smells slightly of pine and rain. The Heart of the Village The town itself is centered around a large village green, perfect for a slow stroll or a picnic while watching the world go by. It’s lined with cozy independent shops, outdoor gear stores, and cafes that make it a favorite for both hikers and those looking for a quiet afternoon. Iconic Bridges and Waterfalls Betws-y-Coed is famous for its picturesque crossings and dramatic water features that are just a short walk from the center.
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Gwydir Castle is a magnificent and atmospheric historical gem located in the Conwy Valley, North Wales, nestled in the foothills of Snowdonia, near the town of Llanrwst. It is perhaps best described as a fortified manor house or Tudor courtyard house, rather than a traditional Norman-style fortress. The Wynn Family: Gwydir was the ancestral home of the Wynn family, one of the most powerful and influential families in North Wales during the Tudor and Stuart periods. They were descended from the ancient Princes of Gwynedd. Salvaged Materials: The castle incorporates re-used medieval materials, including a spiral staircase, taken from the dissolved Maenan Abbey in the 16th century. Royal Connections: King Charles I stayed at the castle in 1645. The future King George V and Queen Mary stayed here in 1899.
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Such a beautiful and famous tea house. I'm so glad i got to see it before all the plantation had been removed. Saw in a news feed this week, it lost so much of its character
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built in 1480 as a residential dwelling but has been a tearoom for over 50 years. famous for their cream teas, traditional BaraBrith , home made cakes and lunches. carpark, traditional indoor seating and outdoor tea garden, both with waitress service. situated on the west bank of the river Conwy beside the famous Inigo Jones Bridge in the picturesque market town of Llanrwst, at the gate way to Snowdonia.
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Though it was not a tough or technical ride, it did take me into territory I had never visited before and was a lovely antidote to the 'fleshpots' of Gwydir Forest or Coed-y-Brenin. Some lovely gentle singletrack, beautiful views and I didn't see another rider for the whole trip - although tbh I did set off at 08.30 on a Wednesday!!
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This bridge across the 900-acre (364 ha) Alwen Reservoir enables a beautiful and tranquil loop of the Wales' largest artificial lake. The views across the water and to the surrounding woodland and hills are lovely.
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An easy route for all abilities
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There are 11 mountain bike trails around Llyn Alwen, offering a range of experiences from easy to moderate difficulty.
The terrain around Llyn Alwen is diverse, featuring coniferous forests, expansive moorland, and scenic reservoir shorelines. You'll primarily ride on well-maintained forestry tracks and surfaced paths, providing a relatively smooth experience, though some sections may require more concentration. Expect gentle gradients around the reservoir and more undulating sections through the surrounding forest.
Yes, Llyn Alwen offers several easy trails suitable for families. The Alwen Trail, a waymarked circular route around the reservoir, is rated as moderate but is generally accessible. For a specific komoot route, consider the View of Alwen Reservoir – Alwen Dam loop from Hafod Elwy National Nature Reserve, which is an easy 14.0-mile (22.6 km) trail.
You'll encounter stunning views across the Alwen Reservoir and towards the distant mountains of Eryri National Park (Snowdonia). The trails also pass through the beautiful Hiraethog Forest, with its mix of Norway spruce, pines, and larch, and offer open vistas across high moorlands. The Hafod Elwy Moor National Nature Reserve, which borders some trails, is also rich in wildlife.
Yes, many of the trails around Llyn Alwen are circular. The Alwen Trail itself is a prominent circular route around the reservoir. For a longer option, the A circuit of Clocaenog Forest and the Alwen and Brenig Reservoirs is a 29.9-mile (48.1 km) moderate loop that takes you through Clocaenog Forest and past both Llyn Alwen and Llyn Brenig.
Llyn Alwen is enjoyable throughout the year, but spring and autumn offer particularly pleasant conditions with milder temperatures and beautiful seasonal colours in the Hiraethog Forest. Summer is also popular, though trails can be busier. Always check local weather conditions before heading out, as moorland areas can be exposed.
Parking facilities are available at various points around the reservoirs. The nearby Llyn Brenig Visitor Centre offers amenities including parking, toilets, and a café, making it a convenient base for exploring the wider trail network that connects to Llyn Alwen.
Absolutely. The Alwen Trail seamlessly links to the nearby Brenig Trail, allowing for extended rides. Routes like the "Lakes Circular" and the "Two Lakes Trail" combine the routes around both Llyn Alwen and Llyn Brenig, offering more challenging and varied adventures. An example is the Alwen Dam – Llyn Brenig loop from River Conwy, a moderate 43.8 km route.
The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the diverse landscapes, the stunning reservoir views, and the well-maintained network of trails that cater to various skill levels. The blend of forest, moorland, and waterside riding is frequently highlighted.
Yes, the Llyn Brenig Visitor Centre, which is easily accessible from the Llyn Alwen trails, provides amenities such as a café, toilets, and even a free bike wash station. This makes it a great spot for refreshments and facilities before or after your ride.
Yes, along the Alwen Trail, you'll find six illustrated panels that provide insights into the area's wildlife, local culture, and folk tales, including the story of the 'Freckled Fairy Cow'. The reservoir and dam themselves are notable constructions from the early 20th century. Additionally, remnants of Bronze Age artifacts, such as a ring cairn and barrows, can be found along archaeological trails in the area.
The mountain biking trails in Llyn Alwen primarily range from easy to moderate difficulty. There are 4 easy routes and 7 moderate routes available, making the area accessible to a wide range of riders. For example, the Ty Hwnt i’r Bont Tearooms – Betws-y-Coed Village loop from Pentrefoelas is a moderate 27.2-mile (43.8 km) path with significant elevation gain.


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