The Zawn is the U-shaped area closest to the prison. Because of its shape, you can chase sun, or shade, for much of the day. Many of the routes can seep for a few days after rain, and there is often a light waterfall in the back of the zawn. The upper portions of the cliff are not stable, so rockfall is a possibility.
From the bunkers at the base of the stairs, walk to your right. An exposed handline down a vertical wall takes you into the zawn. Falling off means a 20' drop into the sea! You can also rap in and climb out.