Topoguide (en anglais) de l'éditeur Cicerone. Description fournie par l'éditeur :Guidebook to winter climbing in Wales. All the classic winter routes, plus many short outcrop climbs. Covers Carneddau, Glyderau, Llanberis, Yr Wyddfa, Nantlle, Lleyn Peninsula, Moelwynion, Rhinog, Cader Idris, Aran, Dyfi and Berwyn. It offers fuller descriptions where available and tackles grading, with advice on mountaineering issues. Seasons : Usually any time between January and March, during a sustained period of cold weather. Centres : Betws-y-Coed, Capel Curig, Llamberis, Beddgelert. Difficulty : All grades covered. Ice climbing and winter routes require a good level of competance to deal with the prevailing conditions. Must See : Western Gully, Carneddau, North Ridge, Tryfan, Central Gully, Lliwedd, and many more.