As far as Camp Carnival, just ask your travel agent to get you the brochure on it..its full of lots of information. Or you can go to http://www.carnival.com
and search out the Camp Carnival program.
I would advise getting to the port around 11:00 or so, that way you will get the embarkation process out of the way and will be one of the first to board the ship. This will allow you time to explore the ship and partake of the great buffett on the Lido deck. If you havent already gone to www.carnival.com
then click here and fill out your fun pass. Make sure you print it and take a copy with you when you get to the port..this will speed up the embarkation process.
As far as leaving the ship, if everything goes on time you should be off the ship by 9:00 or 9:30 am..but there is no gurarantee since anything could slow it down. Immigration and border security has to clear the ship and if someone from another country doesnt show up for Immigrations then no one disembarks the ship. We usually tell anyone that sails out of Port Canaveral to make sure that you don't get flights out of Orlando any earlier than around 1:00 pm.