Cruising the Week after Thanksgiving

[riddle]

We received the postcard for the free cruise from CAS and chose the week after Thanksgiving as the dates worked best for us (I know it is not totally free but it is good enough for us).

 

I know that is a slow week because air fares are so expensive and hard to get into Miami before the cruise because of the holiday.

 

For those who have cruised this week in the past, should we expect the ship to be full? We are on the Epic and really hope to be able to get the Posh passes. How early should we be able to get on the ship. We are latitudes silver members with a walking handicap.