With your library card you can borrow a California State Libraries Park Pass!  Place a hold with your library card through the catalog or drop by any San Mateo Public Library and ask the Accounts Desk if there is a Quick Pick pass available to borrow. The pass entitles you to a free vehicle day-use entry for one passenger vehicle with capacity of nine people or less or one highway licensed motorcycle at over 200 participating state parks. Checkout is for 3 weeks with no renewals. The California State Library Parks Pass is a partnership between California State Parks and the California State Library.

California State Parks Pass
Interactive Map of Participating Parks