For example, if you don't see a letter or hear the announcement about a port change, you'll miss the chance to book new excursions. And since some passengers return to their rooms to go to bed only once they have dropped off their unpacked luggage and set themselves up, a missed announcement can be a big problem.

BALTIMORE -- Carnival Cruise Line is partnering with the Port of Baltimore for another five years. The new agreement begins on January 1, 2025, and it includes a five-year renewal option.