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Routes
Mountain biking trails
United Kingdom
Wales
North Wales
Gwynedd
Bala

Penllyn Forest and the Dee Valley circular from Bala

Routes
Mountain biking trails
United Kingdom
Wales
North Wales
Gwynedd
Bala

Penllyn Forest and the Dee Valley circular from Bala

Hard

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

A

Start point

Parking

Get Directions

1

1.57 km

View of Llyn Tegid (Lake Bala)

Highlight • Lake

It's Llyn Tegid🤨

Translated by Google •

Tip by

2

12.2 km

Hirnant Pass

Highlight (Segment) • Climb

The classic and semi-brutal climb up the Hirnant pass. This single track road connects the two big lakes of Bala and Vyrnwy together.

Tip by

3

16.3 km

Stunning scenery as you bike across the tops on this remote double track gravel road. The entire route is a viewpoint!

Tip by

B

60.6 km

End point

Parking

Loading

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

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

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

to get more detailed weather forecasts along your route

This route was planned by komoot.

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Frequently Asked Questions

Is this mountain biking route suitable for beginners?

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.

What is the terrain like on this circular route?

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.

Where can I park to access the Penllyn Forest and Dee Valley circular?

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.

Is the Penllyn Forest and Dee Valley circular dog-friendly?

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.

What is the best time of year to mountain bike this route?

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.

Do I need any permits or pay entrance fees for this route?

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.

What can I see along the route?

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.

Does the trail intersect other well-known paths?

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.

Are there any cafes or pubs near the trail for refreshments?

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.

What should I pack for mountain biking this challenging route?

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.

Is there public transport available to reach the trailhead in Bala?

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.

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