what are the requirements to enter cuba?
['Passport. Travelers to Cuba must present a valid passport. ... ', 'Visa. Tourist visas are also required for all visitors. ... ', 'Medical Insurance. ... ', 'U.S. Citizens need a special license to enter Cuba. ... ', 'Traveling to Cuba with minors. ... ', 'Register your trip. ... ', 'Exit plan. ... ', 'Do your research.']