I am going into San Francisco with my gf for a few medical tests and I am going to get about 2 whole days with a bike and 1-2 days with a car (can go out of the city). Just wondering what I can go do while I have these modes of transportation. I live in Hawaii and can bike pretty descent distances so don't be too modest. I have been over the golden gate bridge by bike before and it was cool but if there is something worth seeing beyond it I would easily do it again or I would move to other places... Thanks in advance!