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Also, remember that you have to have a passport for air travel to/from Mexico and the Bahamas, so itâs best to have one for a cruise just in case you need to fly back for any reason, or in case you miss the boat at port and need to fly somewhere to catch up to it.
In that case, it is very possible that the cruise line will require you to have a passport to board, even if it is not a U.S. requirement. You should always check with your cruise ship, travel agent and or destination country to confirm the requirements for entry into the foreign countries you will be visiting.n that case, it is very possible that the cruise line will require you to have a passport to board, even if it is not a U.S. requirement. You should always check with your cruise ship, travel agent and or destination country to confirm the requirements for entry into the foreign countries you will be visiting.