For a cruise to the Bahamas in 2026, your requirements depend largely on your citizenship and the type of cruise. U.S. Citizens on a "closed-loop" cruise (starting and ending at the same U.S. port) can technically travel with a state-issued birth certificate and a government photo ID, but a valid U.S. Passport is strongly recommended for any emergencies that might require you to fly home. If you are flying into Nassau to start your cruise, a passport is mandatory. All travelers must complete an online immigration form and an oral baggage declaration upon arrival in the Bahamas. In 2026, there are no longer COVID-19 vaccination or testing requirements, but you should ensure your passport has at least six months of validity remaining from your return date. Additionally, you will need to register a credit card to your cruise "SeaPass" or room key for onboard spending, and it is wise to have the cruise line's app downloaded for digital check-in and to manage the required health questionnaires before you board.