Llanberis Pass – Pen-y-Pass loop from Cwm Dyli Power Station
Llanberis Pass – Pen-y-Pass loop from Cwm Dyli Power Station
89
riders
Llanberis Pass – Pen-y-Pass loop from Cwm Dyli Power Station
01:04
19.6km
390m
Road cycling
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is right next to a parking lot.
Last updated: May 27, 2026
Tips
The surface for a segment of your route may not be suitable
Some segments of your route comprise a surface that may not be suitable for your chosen sport.
After 5.17 km for 206 m
Waypoints
Start point
Parking
Get Directions
243 m
Pen-y-Gwryd Hotel
Highlight • Pub
The hotel played host to the first successful Everest & Kangchenjunga expedition teams whilst they were preparing for these endeavors.
Notable patrons in the past include, Sir Edmund Hillary, Tenzing Norgay, Sir John Hunt, Joe Brown and George Mallory.
The pub is cozy and full of Mountaineering paraphernalia & history. Good beer too.
Tip by
2.02 km
Mallory's Café
Highlight • Cafe
If you are coming from Nant Peris the average grade of this col is 5.3% with a maximum of 9.6%. The Pen-y-Pass ascent starts at 113 meters and goes to 360 meter at the top, a total of 247 ascending meters.
Tip by
4.29 km
Cromlech Boulders
Highlight • Climb
There are more higher up on the hill and you will find boulderars here at most times of the weather permits.
Tip by
5.26 km
Nant Peris Valley
Highlight (Segment) • Viewpoint
Tip by
12.5 km
Llanberis Pass
Highlight • Mountain Pass
Tip by
12.7 km
Llanberis Pass – Pen-y-Pass Climb
Highlight (Segment) • Climb
Café and shop at the car park at the top along with the YHA Pen-y-pass. There is a nice pub in Nant Peris and cafes and shops in Llanberis a bit further down the road,
Tip by
17.7 km
Pen-y-Pass
Highlight • Parking
The excellent youth hostel has a rich mountaineering heritage. It was famously the haunt of George Mallory, who became part of Everest legend when he died attempting to be the first person to climb the world's highest peak in 1924. Whether or not he ever made it to the summit is one of the greatest mysteries in adventure history. The hostel's Mallory's Bar, is named in his honour.
Tip by
19.6 km
End point
Parking
Way Types & Surfaces
Way Types
19.2 km
240 m
< 100 m
< 100 m
Surfaces
19.3 km
240 m
< 100 m
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Elevation
Highest point (360 m)
Lowest point (110 m)
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Weather
Powered by Foreca
Saturday 11 July
27°C
14°C
0 %
Additional weather tips
Max wind speed: 24.0 km/h
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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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