I bought a premier 24 hour pass and thoroughly enjoyed the Alcatraz tour and the Night Bus tour of San Francisco. However, I was disappointed that the Alcatraz booking was for mid day 1:05 pm, which essentially made it impossible for me to utilize the hop on hop off portion of the ticket or to opt for the Sausalito cruise instead of the Night Bus tour. The amount of time necessary to get to the Big Bus depot on Pier 39 and then walk or ride to Pier 33 to queue in advance of one's boarding a mid day ferry to Alcatraz and then doing the reverse after finishing at a minimum 2 1/2 hours needed to cover the island, its buildings, exhibits and special programs used up the majority of one day.