Down by the lakeside on the S-bend between Nant Peris and Llanberis. The classic of the crag is Fish Skin Wall 7A+.
Park in the layby. An old, rusty (and now wired closed) gate marks the start of the descent. Climb the fence (ideally on the right as one of the blocks supporting a fence post is loose on the left). Take the vague path, which at first goes towards the lake and then drops round to the left. The main wall is pretty recognisable, but it also has a bent, rusty iron spike sticking out above head height on the left hand side. [NWB page 96]