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Running trails & routes

Glyders from Pen-y-Gwryd trail running loop — Parc Cenedlaethol Eryri / Snowdonia National Park

Running trails & routes

Glyders from Pen-y-Gwryd trail running loop — Parc Cenedlaethol Eryri / Snowdonia National Park

Hard

15

runners

Glyders from Pen-y-Gwryd trail running loop — Parc Cenedlaethol Eryri / Snowdonia National Park

02:04

10.7km

780m

Running

This difficult 6.7-mile (10.7 km) trail running loop from Pen-y-Gwryd offers a challenging experience with 2573 feet (784 metres) of elevation gain, typically taking around 2 hours and 4 minutes. You will navigate rugged and sometimes pathless terrain, including bouldery sections and scrambling over large boulders to reach the summit…

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

A

Start point

Parking

1

3.83 km

Glyder Fach summit and the Cantilever Stone

Highlight • Summit

Home to the impossibly-balanced, much-photographed Cantilever Stone, Glyder Fach is the highlight of the Glyders: a world of jumbled boulders and craggy outcrops, soaring sumptuously above Llyn Ogwen. For an …

Tip by

2

5.41 km

Glyder Fawr summit

Highlight • Summit

The summit of Glyder Fawr is magnificent. On a clear day you will see incredible views of Snowdon, Crib Goch and Garnedd Ugain. At 3,284 feet (1,001 m), it is the highest peak in the Glyderau range.

Tip by

3

8.46 km

Pen-y-Pass

Highlight • Parking

Right in the heart of northern Eryri (Snowdonia), Pen-y-Pass is superbly located for adventures on the Yr Wyddfa (Snowdon) massif and the Glyderau. It is a popular starting point for …

Tip by

B

10.7 km

End point

Parking

Way Types & Surfaces

Way Types

3.70 km

3.35 km

1.90 km

1.48 km

293 m

< 100 m

Surfaces

3.30 km

3.10 km

2.12 km

1.85 km

331 m

< 100 m

< 100 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 (970 m)

Lowest point (270 m)

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Weather

Powered by Foreca

Today

Wednesday 28 October

13°C

8°C

69 %

Additional weather tips

There’s a fairly high chance of rain. Consider packing a waterproof jacket.

to get more detailed weather forecasts along your route

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