I am planning a trip for my college age son and myself (Mom) in May. We are staying at the Chancellor in Union Square and will be there an evening, and two full days in the beginning. Morning 1 will be Alcatrez. I know we want to go to Fisherman's Wharf, Pier 39, Ghirardelli Square, Hiaght Ashbury area, Chinatown, Lombard St., North Beach, Coit Tower, Ferry building. Definitely want to see the Golden Gate & Presidio. Are there any other sights or neighborhoods we should prioritize to visit? After another two nights in Calistoga, we will come back through after a quick stop in Muir woods, and can spend 1/2 a day in San Francisco. Also before we leave for home will have another 1/2 day. (Total of one evening, 2 full days, and 2 half days in San Francisco) Would consider biking over the Golden Gate to Sausalito and riding the ferry back if it isn't too expensive-how many hours would that probably take? Also, when we decide what and when to do this, what is the best way to determine in what order and on what Muni to take to see these places?