The tourism bureau ginned up this video depicting a day in the life of everyone's favorite city.
It's well-done, even if there's a suspicious lack of fog in much of the video. (And the ending gives the impression that everyone should drive home to Marin after visiting.)
It also would be impossible to literally do all of these things in one day. They show "The Nutcracker," which runs during December, and a Giants game, which couldn't be later than October.