Park at the Cat Slab parking lot, just past Tunnel 5. Walk the bike path as it curves around with the creek. After about 10 minutes, you'll see The Graveyard, a little ways uphill. You'll probably see one trail-ish thing that cuts sort of straight up the hill, but don't take that one. Walk another 100 feet or so to a much better defined trail, and follow it up to the crag.