Carnival Cruise has specific age requirements for passengers sailing on their ships. Generally, the minimum age to sail unaccompanied is typically thirteen years old. However, children who are twelve years of age or younger must be accompanied by an adult who is at least twenty-one years old. There are also certain guidelines regarding infants, as passengers must be at least six months old to travel on most voyages. Additionally, for transatlantic and other longer cruises, passengers must be at least one year old. It is essential for families considering a cruise with Carnival to review these age requirements before booking their trip. For the most accurate and up-to-date information, it is advisable to refer to the official Carnival Cruise website, where comprehensive details are provided.