Oakland Museum of California – The garden is free and overlook Lake Merritt. Usually cool exhibits (recent selections include The Eames [yes, the chairs, amongst other creations] and Queer History in California).
MoMA in SF
Oakland East Asian Cultural Center
Classic Cars West
Renegade Craft Fair - occurs twice a year (once in Winter, once in Spring/Summer), many booths with hand-made art, jewelry, clothing, food, etc. Located in SF.
4. Berkeley Art Studio: You can get student discount for a semester. They tend to fill up pretty quickly, so you need to sign up ahead of time. It is an open studio so that you can use it outside of class hours.
6) So Far Sound: It is a music series in secret places. People sign up their houses as concert venues to support local artists and if you are able to get a ticket, you will learn the location. It is a really nice cozy environment for all sorts of music types.7) Symphony in the park