Originally Posted by dkjretired
Not really an issue here because he has a passport but on this cruise do not believe you actually need a passport. In most of the Caribbean if you are on a closed loop cruise you only need a birth certificate.
Every US citizen who travels outside the United States should
carry a passport, even though it's still true that in a few special circumstances you might not need one.
The benefits are many. First and foremost, you don't have to consult your tarot cards every time you want to go somewhere to find out if you're legal. With a passport, as Mike and others have said, you're almost always good to go. Just check the State Department website to confirm that you don't need an advance visa, and you're all set.
Most important, having a passport might impel you to USE it to go someplace interesting besides the Caribbean. I'm just sayin'.