Great trip, but booking through Viator screwed up the times. I asked for Alcatraz at 10 and Viator confirmed that, but since Viator is a 3rd party vendor I did not get that time. When I checked in at Big Bus tours they gave us 3:20pm to Alcatraz. Would never book through Viator again.
Very informative and enjoyable. We had a great time....this is the way to see the sights
Hardly any of the buses had live guides. Not very organized. Not one time did they ever scan our ticket. Compared to the Big Bus tours in other cities, this one was a disappointment, especially since it is the most expensive Big Bus tour we've ever taken--- although it's understandable that it would be more expensive than more compact cities with less traffic.