Penllyn Forest and the Dee Valley circular from Bala
Penllyn Forest and the Dee Valley circular from Bala
05:24
60.6km
1,440m
Mountain biking
This difficult 37.6-mile mountain biking route from Bala offers stunning views of Llyn Tegid and the Dee Valley, with 4726 feet of climbing.
Last updated: February 26, 2026
Tips
Includes a very steep uphill segment
You may need to push your bike.
After 3.93 km for 174 m
Waypoints
Start point
Parking
Get Directions
1.57 km
Highlight • Lake
Translated by Google •
Tip by
12.2 km
Highlight (Segment) • Climb
Tip by
16.3 km
Highlight (Segment) • Trail
Tip by
60.6 km
End point
Parking
Way Types & Surfaces
Way Types
29.0 km
21.7 km
5.98 km
3.58 km
253 m
< 100 m
< 100 m
Surfaces
26.9 km
22.7 km
6.98 km
3.19 km
817 m
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Elevation
Highest point (660 m)
Lowest point (150 m)
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Weather
Powered by Foreca
Wednesday 6 May
13°C
6°C
35 %
Additional weather tips
Max wind speed: 13.0 km/h
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This route was planned by komoot.
No, the Penllyn Forest and Dee Valley circular is classified as a difficult mountain bike ride. It demands very good fitness and advanced riding skills, with significant elevation changes and challenging terrain. Some sections may even require you to push your bike.
The route features a diverse mix of surfaces, including approximately 29.0 km of road, 21.7 km of path, 5.98 km of singletrack, and about 26.9 km of unpaved sections. You'll encounter steep and narrow roads, mountainous terrain, and remote double-track gravel roads, all contributing to a challenging ride.
While specific parking for this exact route isn't detailed, Bala serves as a natural starting point. You can find parking options within Bala town, which is well-equipped for visitors. Always check local signage for parking regulations and fees.
Yes, dogs are generally welcome on trails in this area. However, as the route passes through diverse habitats, including marshy uplands and potentially livestock grazing areas, it's crucial to keep your dog under close control, preferably on a leash, to protect wildlife and farm animals.
The best time to tackle this challenging route is typically during the drier months, from late spring to early autumn (May to October). This avoids the worst of winter weather, which can make the already demanding terrain even more difficult and potentially hazardous.
No, there are no specific permits or entrance fees required to ride this route. However, the trail is located within the broader region of Y Berwyn National Nature Reserve. While there are no fees for access, please respect the natural environment and follow the Countryside Code.
The route offers breathtaking views of Southern Snowdonia. Key highlights include panoramic vistas of majestic mountains and deep valleys, views of Llyn Tegid (Lake Bala), Wales' largest natural lake, and the challenging Hirnant Pass. You'll also traverse a Gravel Track Across the Tops, offering stunning scenery across the Berwyn mountain range.
Yes, the route also passes through sections of the Regional Route 16, Regional Route 15, and the Queens Walk. These intersections can offer opportunities to explore alternative paths or extend your ride if desired.
Bala, the starting and ending point for this circular route, offers various options for refreshments. You'll find cafes, pubs, and other amenities in the town where you can refuel before or after your challenging ride.
Given the route's difficulty and length (60.6 km with 1,440 m elevation gain), you should pack essentials like plenty of water, high-energy snacks, a repair kit for your bike, appropriate layers of clothing for changing weather conditions, a first-aid kit, and a reliable navigation device with the route downloaded.
Bala is accessible by public transport, though options might be limited depending on your starting location. It's advisable to check bus schedules to Bala in advance, especially if you're relying on public transport for your journey to and from the trailhead.