4.4
(8)
45
riders
03:07
31.0km
640m
Gravel riding
Embark on the Gwydir Mawr Trail, a challenging gravel biking route spanning 19.3 miles (31.0 km) with a significant 2108 feet (643 metres) of elevation gain. This difficult ride, typically completed in about 3 hours and 6 minutes, takes you through the lush green landscapes of Gwydir Forest Park. You'll…
Last updated: April 23, 2026
Tips
Includes an off-grid segment
Navigation instructions may be limited.
After 9.30 km for 16 m
Waypoints
Start point
Train Station
Get Directions
588 m
Highlight • Cycleway
Tip by
10.6 km
Highlight • Historical Site
Tip by
23.9 km
Highlight • Forest
Tip by
31.0 km
End point
Train Station
Way Types & Surfaces
Way Types
16.9 km
10.7 km
2.63 km
542 m
188 m
< 100 m
Surfaces
18.6 km
6.71 km
4.92 km
738 m
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Elevation
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Weather
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Monday 1 June
17°C
11°C
51 %
Additional weather tips
Max wind speed: 19.0 km/h
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This route was planned by komoot.
The main trailhead for the Gwydir Mawr Trail is typically accessed from the Betws-y-Coed area. While specific parking details aren't always signposted, you'll find designated parking areas within Gwydir Forest Park that serve the trail network. It's always a good idea to check local signage upon arrival.
While primarily designed as a mountain bike trail, the Gwydir Mawr Trail can be tackled by gravel bikers. Many climbs are on wider forest roads, which are more gravel-friendly. However, be prepared for challenging sections of singletrack that can be rocky, technical, and potentially slippery when wet. A good quality off-road bike is essential.
The Gwydir Mawr Trail is graded as 'Red' or 'Difficult.' It demands a higher level of fitness and stamina due to significant climbs and descents. Technical sections require proficient off-road riding skills. Some descents feature drops and berms, and parts can be steep and rocky.
You'll experience a varied terrain, including wider forest roads for climbing and 'brilliant singletrack' sections. The singletrack ranges from tight, technical, and rocky to open and flowing, traversing dark forests and exposed ridgelines. Newer sections also incorporate modern flow features. Expect loose surfaces in places, and slick, leaf-covered rocks with flowing water if it's wet.
Riders can expect truly awesome and panoramic views of the mountains of Snowdonia (Eryri). The trail winds through lush green landscapes within Gwydir Forest Park. Specific scenic points include views of Llyn Elsi, and you'll pass by Llyn Geirionydd and Llyn Parc.
For gravel bikers, riding the trail from north to south might be preferable. There's a particularly steep and rocky descent to Pont Cyfyng that is 'just about rideable' on a gravel bike. Riding in the north-to-south direction allows you to hike up this challenging section rather than attempting to ride down it, which can be safer and more enjoyable.
Yes, dogs are generally welcome on the Gwydir Mawr Trail, but they must be kept under close control, preferably on a lead, especially around livestock, wildlife, and other trail users. Please remember to clean up after your dog to help keep the forest clean and enjoyable for everyone.
The Gwydir Mawr Trail can be ridden year-round, but the best time is typically from late spring to early autumn (May to October) when the weather is generally drier and temperatures are milder. During wetter periods, sections can become very slippery with leaf-covered rocks and flowing water, increasing the technical challenge.
No, you do not need a specific permit or to pay an entrance fee to ride the Gwydir Mawr Trail itself. Access to the Gwydir Forest Park and its trails is generally free. However, some parking areas may have a charge.
When cycling within Eryri National Park, it's important to stick to designated trails like the Gwydir Mawr Trail. Always follow the Countryside Code, respect wildlife, keep gates closed, and be considerate of other users. There are no specific entrance fees for the park itself, but adherence to local regulations is expected.
Yes, the Gwydir Mawr Trail is part of a larger network. It incorporates the shorter Gwydir Bach Trail and also intersects with sections of the Snowdonia Slate Trail and the Conwy Valley Cycle Route, among others.
Yes, the Gwydir Mawr Trail is conveniently located near Betws-y-Coed, a popular village offering a range of amenities. You'll find cafes, pubs, and accommodation options there. There's also Alpkit Betws-y-Coed nearby for any cycling gear needs.