do i need a passport to go on a cruise

Closed Loop Cruise Defined

What Exactly is a Closed Loop Cruise? Does it Require a Passport? A “Closed Loop Cruise” as defined by United States Customs and Border Control is an ocean or river voyage that begins and ends at the same U.S. port. Within this definition, the cruise ship may visit islands or territories that are contiguous to Closed Loop Cruise Defined