Are golden gate park park streets closed on Sunday? I want to see the Science exposition that opens at 12 on Sundays. Related to that , We are staying on Lombard with free parking. Should we take a bus? We are happy to buy a day pass and see other sights that day closer to union square etc.. How about renting a bike? We are avid cyclists and the hills of SF would not be a problem. If so, is there a good location to rent from where we are. Maybe fishermans wharf?