Lumbard street, Coit tower, pier 39 is very touristy but cool for the sea lions. Also the winchester house is cool but will be a bit of a drive (look up online about that) Depending on what you like to do there are the redwoods, goldengate park, take a ride on the cable car, check out a giants game. I wouldnt suggest going to an oakland game, its really rough around that area. Some parts of oakland are VERY nice and rich but theres not much median and the rest is dirt poor and rough.