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Mountain biking trails

View of Llyn Trawsfynydd – Llyn Trawsfynydd loop from Blaenau Ffestiniog

Routes

Mountain biking trails

View of Llyn Trawsfynydd – Llyn Trawsfynydd loop from Blaenau Ffestiniog

Moderate

4.0

(1)

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: May 21, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

Start point

Parking

Get Directions

8.91 km

Llyn yr Oerfel

Lake

11.9 km

Hefin's Wall

Highlight • Structure

the worlds famous hefin's wall

Tip by

16.4 km

Trawsfynydd Trig Point

Highlight • Viewpoint

Trawsfynydd FBM
Snowdonia trig

Translated by Google •

Tip by

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

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

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

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

19.9 km

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 is overlooked by several mountains. While a lake with a nuclear power station on its banks might not sound like a wondrous place, Llyn Trawsfynydd is actually exceptionally beautiful.

Cycleways and footpaths have been created around the lakeshore and are well-maintained. With woodlands, nature reserves and wetlands, there’s a lot of animal and birdlife here, as well as Atlantic oakwoods. You can cycle the entire way around the lake thanks to a new trail and National Cycle Route 82 leads you from the north around the eastern side.

Tip by

23.5 km

Ty'n-y-bryn Covert

Forest

25.4 km

Country Road Along the River in Parc Cenedlaethol Eryri

Highlight (Segment) • Viewpoint

As always great scenery with fresh air some decent climbs well worth it.

Tip by

32.1 km

End point

Parking

Way Types & Surfaces

Way Types

13.5 km

9.17 km

5.22 km

1.64 km

1.45 km

1.10 km

< 100 m

Surfaces

10.7 km

9.87 km

6.31 km

4.11 km

1.16 km

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)

Weather

Saturday 4 July

20°C

14°C

17 %

Additional weather tips

Max wind speed: 19.0 km/h

to get more detailed weather forecasts along your route

Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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View of Llyn Trawsfynydd – Llyn Trawsfynydd loop from Blaenau Ffestiniog

Hefin's Wall

Trawsfynydd Trig Point

Singletrack Trail in Parc Cenedlaethol Eryri

Llyn Trawsfynydd Visitor Centre

Trawsfynydd Nuclear Power Station

View of Llyn Trawsfynydd

Llyn Trawsfynydd

Country Road Along the River in Parc Cenedlaethol Eryri

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