heres an outlook from one of like 10+ caves in Castle Rock park (pine canyon) in Walnut Creek, CA. AKA, home.
its located just on the west side of Mt. Diablo.
lots of fun climbs out here ranging from 5.8-5.12+
theres a 5.10 b OW, a 5.7 3 pitch route, lots of little bouldering areas, mountainbiking, hiking, and the place is just lots of fun for anything and its really pretty.