my family (3 kids & a disabled mom) will be travelling to san francisco on aug 24 to 28 coming from los angeles. we are planning to take the amtrak to san francisco . We are going to join the bus tour for the san francisco city, muir woods & monterey tours. do you have any suggestions on hotels that are walking distance to the ferry building since this will be the pick-up place for the tour? thanks for any help!