We are an unmarried couple, both 24. My second cruise (with carnival) his first.
Travel to: We took a Sunday flight into Miami airport, got there about 1pm and then purchased the Carnival shuttle ride after arriving. I think next time we will take a taxi. There is a lot of wait time boarding the bus because they have to load all your luggage piece by piece. It was raining, and I could not remember if the taxi's could drop you off right at the door. (found out they do).
Embarkation: Took maybe 5 minutes? We pretty much walked right on the boat since we got there at 2:30.