Bay Area Sedditors,

I just moved to Oakland (yesterday) and have a day 2 in San Fran scheduled this Saturday. I don't know my way around the city yet, and am unfamiliar with the neighborhoods and attractions. I did some Googling, and considered checking out the Exploratorium 'cause I enjoy hands on science exhibits. But the website makes me think it may be more kid oriented.

My next best options are the SF Botanical Gardens or a walk down Haight and through Golden Gate Park. Any suggestions, comments, or tips (especially parking tips) are greatly appreciated.

EDIT: Great martini bars / jazz clubs / piano bars in the city?