Fachwen Boulders


All the boulders and walls described in the Fachwen section of North Wales Bouldering. The most popular sector is Y Clegyr (not to be confused with Clegir on the other side of Llyn Padarn), but there are many other gems scattered around.


Crag information
Climbing Area: Wales Rock Type: Igneous
Importance: Local CRoW Land: Yes
Ownership: Private No. of Routes:
Within National Park: No Year Developed: 1960
Grid Reference: SH575 621

New Pen y Bigil/ Accomazzo’s Wall approach route

From the top of Gallt y Foel turn right and follow the narrow tarmacked lane. After 200m it turns into a rougher track. Ignore the right hand turn leading down towards Clwt y Bont and continue for 80m to a gate just past the Tyddyn Du property. Continue on the descending path (a PRoW) for 100m where there is a large Holly tree underneath the path and a recess on the left with a short leaning wall just above on the left. (GPS 53.140491, -4.129422) Follow a vague path up rightwards through the recess (can be overgrown with bracken in the summer months), then over and, 100m from the main path,  left just in front of a clean wall. The path, indefinite in places, continues to snake towards Pen y Bigil for 400m. Follow it up on the southern side of the hill until you can see Accomazzo’s Wall at GPS 53.137047, -4.130195.

Harris’ Arête GPS coordinates and they are incorrect in the guidebook. They should be 53.136163, -4.134153.

Please avoid accessing the area via Bigil track as described in the recent guidebooks.

Area information

A wide range of cliffs - mainly traditional and multi pitch inc. the popular Llanberis Pass, Idwal Slabs, Clogwyn du'r Arddu and Cwm Silyn cliffs, but also outlying outcrops such as Carreg Alltrem. Many crags are on CROW access land - but not all especially some of the outcrops which lie on private enclosed land. Most of central Snowdonia is both designated an SSSI and also is an European Special Area of Conservation on account of the upland habitat and associated geology and plants found here.

Weather Information

There are no guidebooks assigned to this crag

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