OLICE, FIRE, AND AMBULANCE. THERE WILL NOT BE AN ENGLISH SPEAKER ANSWERING THE PHONE. VISA/PASSPORT A. U.S. CITIZENS DO REQUIRE A VALID PASSPORT. B. U.S. CITIZENS (PAX) DO NOT NEED A VISA FOR A STAY OF 180 DAYS OR LESS, BUT MUST BE LISTED ON THE GENERAL DECLARATION. U.S. CITIZENS (CREW) DO NOT NEED A VISA FOR A ST