Do you need a passport book or passport card to go on a cruise to the Bahamas from us?

Assuming you are a U.S. citizen, the short answer is "NO". Having said that, I ALWAYS recommend a passport for travel outside the U.S. The reasoning is simple. Ever heard of Murphy's Law?

If you go without a passport, and no problems arise, you come home and all is well. If you catch a cold, or if you need to get home NOW because Mama got sick, or if you break your ankle getting back to the ship after a few drinks, or if you just look like someone else and are detained past the ship's sailing, how do you get home?

Odds are you will make it home eventually, although, you will hate the day you thought of leaving w/out that passport (or card). I will NOT be quick. It will NOT be fun. If you LOVE the government when you leave, you'll hate it before you get home! Of course, they're just doing their jobs, and, you were "WARNED" before you left the states.

The card is okay, but, the "passport" is internationally accepted as a form of ID for a few dollars more.