we stayed in sf last weekend. stayed at USW. Park 55 for $95.00 per night. sf has a very good public transportation system. if you stay in USE or USW you use the F line trolley, $1.50 one way. it will take you down market street to Pier 39 and fisherman's wharf. or take the cable cars , 1 way is $5.00 it will take you to fishermans wharf. Also look at the visitor pass. the 3 day price was $18.00 unlimited rides.