Links for information about Proof of Citizenship needed for travel.
Clearwater Cruises only recommends travel outside of the United States with a valid Passport.
Question: If some cruise itineraries do not require a passport, why would Clearwater Cruises recommend traveling with one?
Answer: Passports are required for entry into the U.S. via air or overland border. Should you have an unexpected emergency while on your cruise you may need to return to the U.S. unexpectedly. Traveling with a Passport would help your hassle-free return.