Climb the thinly-crusted slab - this is probably the psychological crux for the leader - to gain good ice at the base of a vertical 2m high curtain. Climb this to lower angled ice and follow it as it weaves up another slab into the woods.

The right side of the Black Arches Wall has a slab leading up to a roof, left of the rightmost rock buttress. This route climbs the slab to a short ice pillar left of the roof.
Descent: Walk around climber's right or rappel with double ropes. Alternatively, you can walk climber's left and up for quite a wallow to access the Diagonal Ramp. Also, there is a fixed anchor on an oak tree to the left; from it a 60m rope will *barely* reach the Patio ledge, which can be carefully traversed left to regain the base trail.

ice screws, runners for trees.