Hi Jools
So far 25 people have booked. There will be time to see Alcatraz while you are there. I would recommend booking your ticket online in advance for the afternoon of Day 2. There is an included city tour that morning, so I would book an Alcatraz ticket for around 1pm or later. There is also an optional harbour cruise at around midday, so if you want to do that too, I would book Alcatraz for around 2pm or later.
Kind regards,
Olly, your editor