The quiet Crafnant Valley on the eastern side of the Carneddau has some great climbing. Clogwyn yr Eryr offers the extreme leader a superb collection of steep wall climbs situated in a quite idyllic location. The climbing is mainly vertical although the starts are often steeply undercut and the routes reward a decisive and powerful approach. In the higher reaches of the crag the climbing becomes more technical and good footwork pays dividends. The rock is well featured and normally allows plentiful amounts of gear to be placed. The blanker areas often have peg protection, although a lot of this is now old and of dubious quality.
There are other good crags in the valley; the nearby Craig y Dwr in particular is worth a look.
Although generally south-facing and sunny, the cliff is quite exposed to the elements. Typically bad weather will stop short of the Crafnant Valley, hovering over Capel Curig and the Ogwen Valley instead. Nonetheless during the winter snow can be a problem and access to the valley can be restricted. Because this is a quick-drying crag there are no real seepage problems.
There is limited parking at the end of the metalled road beyond the head of Llyn Crafnant. Park just beyond the gate on the left-hand side (cars often get stuck in the soft ground to the right). The crag lies up on the north side of the valley, just beyond the Forestry Commission woodland.