Bay Area Backcountry: Lick Observatory

720 or so acres, following Penitencia Creek from the Mount Hamilton Range to the valley floor. Not a place for camping.

Parking is limited - the best way in is by bike or on foot.

9000 acres of bone dry wilderness, mostly vertical and so scarcely used that you can go off trail without adverse impact.

Bicycle friendly. Helmets are required.

There is a small campground with water, toilets, and hot showers. No reservations. The campground is open full time from April through October, and sporadically in March and November.