Do I need a passport to go on a Princess cruise?

Yes, a passport is required for most Princess cruises. It is mandatory for all international travel to ensure compliance with immigration laws and gain entry into foreign ports. A passport serves as proof of citizenship and identity when crossing international borders by air, land, or sea. Additionally, it is needed to re-enter your home country after your cruise. There may be exceptions for closed-loop cruises (departing from and returning to the same U.S. port) where a government-issued photo ID and birth certificate may be accepted. However, it is highly recommended to have a passport for all cruises as it guarantees hassle-free travel and allows you to fully enjoy unique destination experiences, as some ports may require a passport even if not technically mandatory.