30m. Five bolts lead up thin dikes to bolt lower-off. Difficulties start at the second bolt, and a decision needs to be made at the third. Having clipped the third bolt, (a) move around arete left for a route with a single 10a move or (b) continue straight until a red circular knob helps the move left to the fourth bolt (many 10a, much tougher). Above third bolt is run-out, but easier (5.8, perhaps take a few cams).