As the Covid-19 lockdown eases, access for climbing is opening back up, subject to some measures and restrictions depending on where you are going. Please make sure you have read and understood our current advice before heading out and apply it alongside RAD advice to ensure access issues don’t develop.

Craig y Castell


Superb classics on good rock overlooking Tremadog.

Crag information
Climbing Area: Wales Rock Type: Igneous
Importance: National CRoW Land: No
Ownership: Estate No. of Routes: 57
Within National Park: Yes Year Developed: 1955
Grid Reference: SH558404

A great traditional crag with some extremely popular routes such as Creagh Dhu Wall, Tensor and Pellagra.

Tawny owls nest on the first pitch of Creagh Dhu Wall (shared with One step in the Crowds). Climbers are requested to move swiftly past this nest and not to hang around here to avoid distrubance from March 1st to the end of May.  It's also worth noting that Tawny owls can be exceptionally aggressive in defending their nests and theer are known cases of serious eye injuries caused to people who venture too close to Tawny owl nests!

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

Guidebook info currently being updated

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There is an owl nesting on the first pitch of Creag Dhu Wall.
Anonymous User
Appears to be an owl fledging 3 chicks in lower corner of one step in the crowds and creag dhu wall, 31 March 2019