Planning a cruise is one of the most exciting parts of vacation dreaming. You’ve researched the ports, picked your excursions, and maybe even started packing your swimsuit. But one question always pops up: Do you need a passport for your cruise? If you’re sailing on a closed loop cruise , the short answer is no—you don’t technically need one. You can travel with just a government-issued photo ID (like a driver’s license) and your original birth certificate with the raised se