Just go across the golden gate bridge, and then about 20 miles after you'll take a small junction freeway, and it'll be right off there. Sorry for the lack of detail, but if you look on any map you'll see it, it's really easy to get to.
Also sign up for the ca mailing list, it's pretty helpful.
I might be going this Wednesday if I get my FMIC installed in time. Otherwise, it will likely be two weeks later. Like everyone else said, sign up for the CA mailing list, when we go, it is usually mentioned.