Usually the documents say arrive 1:00 or 2:00 pm however they will start boarding as soon as they say the ship is clear from previous passengers. If things go right they will start boarding probably between 11:30 and noon. People will start showing up for boarding between 10:30 and 11:00. The trouble with showing up that early is there is a lot of people walking around that just got off the ship so things can get confusing. We usually try to be at the port by 11:30.