As for the time before your returnn flight, we are pretty sure Carnival offers debarkation port excursions that will include shuttle service to the airport. They secure your luggage until you get to the airport later in the day.
If you go on carnival.com, go over all the required check in stuff like FunPass and onboard expenses, have a look at your sailing and the part where they offer shore excursions in Miami on the last day. Looks like they offer "South Beach Experience - Miami Airport ".
Or, you may find a local resort that offers a day pass for you to get a room and facility access for the day.
The Original Phil & Liz
The problem with socialism is that you eventually run out of other people's money. Margaret Thatcher
Never take an idiot travelling, you can always pick one up when you get there. Billy Connolly
I Didn't Come here and I ain't Leaving.
9/01/2013 Carnival Legend
2/16/2014 BC 7
20 years ago we had Johnny Cash, Bob Hope and Steve Jobs. Now we have no Cash, no Hope and no Jobs. Please don't let Kevin Bacon die.