We usually get at the port ASP,usually 1030.Each port is diffrent in the length to get on.I have been on as early as 11am no later than 1130. So really its up to how ready Carnival is,and usully they are really good about that. Rooms are ready at 1-2pm. HAVE A AWESOME TIME.. We just booked our 11th on carnival.14th overall.And I stick with the beat!!!