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Mountain biking trails

View of Llyn Trawsfynydd – Llyn Trawsfynydd loop from Blaenau Ffestiniog

Mountain biking trails

View of Llyn Trawsfynydd – Llyn Trawsfynydd loop from Blaenau Ffestiniog

Moderate

4.0

(1)

3

riders

View of Llyn Trawsfynydd – Llyn Trawsfynydd loop from Blaenau Ffestiniog

02:28

32.1km

540m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 20, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

A

Start point

Parking

8.90 km

Llyn yr Oerfel

Lake

2

11.9 km

Hefin's Wall

Highlight • Structure

the worlds famous hefin's wall

Tip by

3

16.4 km

Trawsfynydd Trig Point

Highlight • Viewpoint

Trawsfynydd FBM
Snowdonia trig

Translated by Google •

Tip by

4

17.2 km

Singletrack Trail in Parc Cenedlaethol Eryri

Highlight (Segment) • Trail

A bit muddy after rain but never too bad. Avoids the main road, well signposted.

Tip by

5

19.3 km

Llyn Trawsfynydd Visitor Centre

Highlight • Cafe

Cafe/restaurant and fishing centre at the lake. Open Thurs-Sun 8-2:30

Tip by

6

19.7 km

Trawsfynydd Nuclear Power Station

Highlight • Monument

Here you can learn that the nuclear power plant is no longer in operation, serves as a (temporary) storage facility and should be dismantled by the end of the century.

Translated by Google •

Tip by

7

19.8 km

View of Llyn Trawsfynydd

Highlight • Viewpoint

Beautiful views across the lake and the mountains beyond. Originally a reservoir built for the nuclear power station nearby.

Tip by

8

19.9 km

Llyn Trawsfynydd

Highlight • Structure

An enormous man-made reservoir, Llyn Trawsfynydd originally provided cooling water for the local nuclear power station (now undergoing decommissioning). The lake lies in the west of Snowdonia National Park and …

Tip by

23.5 km

Ty'n-y-bryn Covert

Forest

10

29.8 km

Coed Cymerau Woodland Trust Information Board

Highlight • Natural

B

32.1 km

End point

Parking

Way Types & Surfaces

Way Types

13.2 km

9.08 km

5.73 km

1.45 km

1.34 km

1.34 km

< 100 m

Surfaces

10.6 km

10.2 km

6.11 km

4.20 km

1.00 km

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Elevation

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

Highest point (320 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Monday 19 October

9°C

2°C

70 %

Additional weather tips

Max wind speed: 4.0 km/h

to get more detailed weather forecasts along your route

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