Located between Three Fingered Jack and the wider 5.9 hand-to-fist crack, Hole in the Wall is finger crack down low with some wide sections up high, ending with a couple of sporty moves protected by bolts.
It is one of the more sustained cracks in the grotto, which makes it seem a tougher lead than Three-Fingered Jack despite the fact that the moves are a little easier.
Pro up to 2 inches. Then two bolts to anchors shared with the 5.9 crack.
take care, the rock quality is VERY QUESTIONABLE on this starting about half way up. There is a 1/2 inch crust on the more solid basalt that is pretty loose, I think if you fell on a cam there it could blow the rock and the placement.
Caughtinside is right about the questionable rock quality... but I really only noticed the "flaky crust" factor in a single 3' section of the climb. Put in gear just below the crust, and just above, and I don't think there's any reason to be concerned. Very fun climb; love it!