Hello Jose, I am sorry you didn't enjoyed your tour. You probably misunderstood or didn't read properly what is advertised. You stayed 1 hour and 15min at Muir Woods and 1 hour in Sausalito exactly how it is advertised. Sometime we stay more when we can. As you said from 8:30am to 1pm it is 4 hours and 1/2. Then You started Alcatraz at 1pm and on average people stay between 2 to 3 hours, sometimes more sometimes less. Ferry back are every 30min. How long did you stay? This is how it comes to 7-8 hours.
This is a tour with other people and with a specific itinerary. It seems that you would like to have a different itinerary, I would suggest a private tour and you could decide on the timing. We have this option, next time please contact us firstname.lastname@example.org we will be happy to organize a private tour for you. Thank you