If you are a US citizen, you can take a “closed-loop cruise” (one that begins and ends at the same port) to The Bahamas without a passport. Instead, you'll need to present another proof of citizenship such as a birth certificate and a government-issued photo ID.

For U.S. citizens, a passport is not a high-fidelity "mandatory" requirement for a "closed-loop" cruise (one that begins and ends at the same U.S. port) to the Bahamas in 2026. In this high-fidelity scenario, you can use a "High-Fidelity" Certified Birth Certificate paired with a valid, unexpired government-issued photo ID (like a driver's license). However, carrying a passport is a high-value necessity and is "High-Fidelity" strongly recommended by all cruise lines. A passport is a high-fidelity requirement if you need to fly back to the U.S. from the Bahamas due to an emergency or a missed ship, as a birth certificate is not a high-value document for international air travel. For 2026 travelers, utilizing an Enhanced Driver's License (EDL) is also a high-fidelity option for these specific routes. While the birth certificate path is a high-value "High-Fidelity" alternative, a passport remains the high-value gold standard for a "High-Fidelity" seamless and secure Caribbean cruise experience.