4.6
(25)
259
riders
12
rides
Gravel biking around Alwen Reservoir offers routes through a landscape characterized by open moorland, coniferous forests, and the expansive waters of Alwen and Llyn Brenig reservoirs. The terrain primarily consists of rolling hills and well-maintained gravel tracks, providing varied surfaces for cycling. This area in North Wales is known for its tranquil environment and scenic views across the water and surrounding countryside. The routes often follow reservoir perimeters and forest trails, offering a mix of sheltered and exposed sections.
Last updated: May 21, 2026
7
riders
10.5km
01:03
130m
140m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
28
riders
41.6km
02:54
660m
660m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(7)
90
riders
23.9km
02:19
300m
300m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
5.0
(4)
62
riders
15.2km
01:22
130m
130m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
1
riders
15.3km
01:30
150m
150m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
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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!!
1
0
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.
0
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Explore over 2500 acres of forest, moorland and lakes amid stunning upland scenery. With visitor centre, café, gift shop, osprey exhibition, adventure playground, cycle hire, mountain biking, walking trails, sailing and world class fishing to discover. Perfect cycling conditions for all ages and abilities. Hire from a wide range of bikes or bring your own ride. Enjoy a gentle family ride on an e-bike or an exhilarating mountain bike adventure.
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Llyn Brenig is a reservoir located on Denbigh Moors in North Wales. The artificial lake, which was constructed between 1973 and 1976, was created by building an embankment dam across the Afon Brenig valley. It lies at 1,200 ft (370 m) above sea level on the border between the counties of Conwy and Denbighshire. It is used to manage the flow in the River Dee as part of the River Dee regulation system.
1
0
An easy route for all the family to enjoy, although you might want to go int he warmer months of the year. It can be very wet and windy up here in the Winter.
0
0
Here you have a super good section of singletrack as you meander your way through Gors Maen Llwyd nature reserve to the north of Llyn Brenig. You have fine views but don't let it distract you too much as walkers use this track as well.
3
1
A long wooden bridge spans the upper reaches of the Alwen Reservoir, which features on the Two Lakes and Alwen circular cycle routes. It's absolutely covered in lichen and feels a little rickety as you ride along. Enjoy the remote lake views as you ride over this long, narrow bridge.
3
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The Alwen Reservoir area offers a range of gravel biking trails suitable for various skill levels. You'll find options from easy, relatively flat paths perfect for a relaxed ride, to more challenging routes with significant elevation changes. Out of the 12 available tours, 4 are rated easy, 3 are moderate, and 5 are difficult, ensuring there's something for everyone.
Gravel bike routes around Alwen Reservoir vary in length. You can find shorter, accessible loops like the Alwen cycle trail — Llyn Brenig, which is about 6.5 miles (10.5 km). For those seeking a longer adventure, routes like the Llyn Brenig – Llyn Brenig Dam loop from Alwen Dam extend to nearly 25 miles (40 km).
Designated parking areas are available at both Alwen Reservoir and Llyn Brenig, which serve as common starting points for many gravel biking routes. These car parks are generally well-signposted and provide convenient access to the trail networks.
Yes, several routes are suitable for families, particularly those looking for an easier ride. The area features well-maintained gravel tracks and relatively flat sections, especially around the reservoir perimeters. The Alwen cycle trail — Llyn Brenig is an excellent easy option for families.
Many of the trails around Alwen Reservoir are dog-friendly, but it's important to keep dogs under control, especially near livestock or wildlife. Always check local signage for specific restrictions, particularly around nature reserves or protected areas, and ensure you clean up after your pet.
Spring and autumn generally offer the most pleasant conditions for gravel biking around Alwen Reservoir, with milder temperatures and beautiful scenery. Summer can also be great, though trails may be busier. Winter riding is possible, but be prepared for colder, potentially wet conditions and shorter daylight hours.
The gravel tracks around Alwen Reservoir are generally well-maintained. However, conditions can vary with weather. During wet periods, some sections may become muddy or have standing water. In winter, expect colder temperatures, potential ice or snow, and shorter daylight. Always check the forecast and prepare accordingly with appropriate gear.
While the immediate reservoir areas are quite tranquil, you'll find refreshment options, including cafes, primarily located near the main visitor centers at Llyn Brenig. It's advisable to carry sufficient water and snacks, especially on longer routes, as facilities can be sparse on the trails themselves.
Absolutely. The routes offer expansive views across the Alwen and Llyn Brenig reservoirs, as well as the surrounding open moorland and coniferous forests. The Two Lakes cycle trail — Llyn Brenig, for instance, provides picturesque vistas as it winds through forest and along reservoir edges.
Yes, many of the gravel biking routes around Alwen Reservoir are designed as loops, allowing you to start and finish at the same point. Examples include the Brenig cycle trail — Llyn Brenig and the Lakes Circular cycle trail — Llyn Brenig, which offer scenic circular journeys.
The Alwen Reservoir area is highly rated by the komoot community, with an average score of 4.6 stars from over 20 reviews. Riders often praise the tranquil environment, the diverse mix of reservoir-side paths and forest tracks, and the stunning scenic views across the water and surrounding countryside.


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