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Bike touring routes & trails

Pen-y-Pass & Ogwen Valley loop from Llanberis — Eryri / Snowdonia National Park

Bike touring routes & trails

Pen-y-Pass & Ogwen Valley loop from Llanberis — Eryri / Snowdonia National Park

Hard

5.0

(1)

97

riders

Pen-y-Pass & Ogwen Valley loop from Llanberis — Eryri / Snowdonia National Park

03:28

47.0km

700m

Cycling

This difficult touring bicycle loop from Llanberis takes you through the dramatic landscapes of Eryri / Snowdonia National Park. You will cycle 29.2 miles (47.0 km) with a significant elevation gain of 2300 feet (701 metres), which typically takes around 3 hours and 27 minutes. The route features the celebrated…

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

A

Start point

Parking

1

3.67 km

Llanberis Pass

Highlight • Mountain Pass

The Llanberis Pass is a spectacular road climb in Snowdonia National Park, Gwynedd. It is the pass between Glyderau and Snowdon Massif at 359 metres above sea level. It also …

Tip by

2

8.79 km

Mallory's Café

Highlight • Cafe

Iconic Pen y Pass is the access point to both the Miners’ and Pyg Track trailheads leading to Yr Wyddfa’s summit. At the pass are toilets, a café, and a …

Tip by

3

17.6 km

Snowdonia Slate Trail Byway

Highlight (Segment) • Trail

All alone except for sheep and cattle. I would recommend a Gravel or MTB bike, but I was ok on my road bike (32mm tyres).

Tip by

4

25.4 km

Nant Ffrancon Cycle Route

Highlight (Segment) • Viewpoint

Off road through the quarry to Llyn Ogwen. You may hear the Zip wire close by.

Tip by

5

44.5 km

Llanberis Tunnel

Highlight • Structure

Great bike path with a small section through the hill for a change!

Tip by

B

47.0 km

End point

Parking

Way Types & Surfaces

Way Types

20.2 km

12.6 km

6.58 km

5.02 km

1.17 km

868 m

537 m

Surfaces

30.4 km

9.62 km

6.11 km

883 m

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Elevation

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

Highest point (360 m)

Lowest point (110 m)

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Weather

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Sunday 11 October

16°C

10°C

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