I was online about to reserve a ticket for St Mark's Basilica for opening time. The website popped up with a message to indicate mornings are very busy with tours and suggests reserving after 13:30. Seems like 14:30 or 15:00 would be better yet. Is an hour to an hour and a half sufficient time? Any guidance about the reservations - when to pick up? any problems? I was hoping to take the vaporetto to San Magiore later in the afternoon/early evening around 17:00.
thank you,
David