Whether you need a passport for Perfect Day at CocoCay (Royal Caribbean's private island in the Bahamas) depends on your citizenship and the type of cruise you are taking. For U.S. citizens on a "closed-loop" cruise (one that starts and ends at the same U.S. port), you can technically visit CocoCay with just a certified birth certificate and a government-issued photo ID. However, Royal Caribbean and the Bahamian government strongly recommend a valid passport for all travelers. This is because if you were to have a medical emergency or miss the ship at the island, you cannot fly back to the U.S. from the Bahamas without a passport. For all non-U.S. citizens, a valid international passport is mandatory to enter the Bahamas and return to the ship. In 2026, as security regulations tighten, carrying a passport is the only way to guarantee a "Perfect Day" without logistical headaches at the pier.