A Guest must be at least 18 years old to sail unaccompanied, otherwise, minors under age 18 who are not accompanied by a parent or guardian must be accompanied by someone at least 21 years old in the same stateroom.

Disney Cruise Line (DCL) does not have a strict maximum age limit, but it has very specific minimum age requirements for infants. On most itineraries, babies must be at least 6 months old on the day of embarkation to sail. However, for more strenuous or remote sailings—such as Transatlantic, Hawaii, Panama Canal, and South Pacific repositioning cruises—the minimum age is increased to 1 year old. On the other end of the spectrum, DCL is a "family" line, but it offers numerous adult-only areas (like the Quiet Cove Pool and Palo restaurant) where guests must be at least 18. Regarding traveling alone, guests must be 21 to book a stateroom independently; those under 21 must be accompanied by someone 21 or older in the same stateroom. Children under 18 can explore the ship freely but require parental consent to disembark at ports on their own or to participate in specific teen-only excursions at locations like Castaway Cay.