No Guest younger than the age twenty-one (21) will be assigned to a stateroom unless accompanied in the same stateroom by an adult twenty-one (21) years old or older. A guest's age is established upon the first date of sailing.

As of 2026, Royal Caribbean's policy for staying in a room alone requires a guest to be at least 21 years old for sailings originating in North America. For cruises departing from South America, Europe, Asia, Australia, and New Zealand, the minimum age to occupy a stateroom alone is 18. There are, however, a few exceptions to the North American 21-year-old rule: if you are a married couple (you must provide a marriage certificate) or active-duty military (with proof of service), the age is lowered to 18. For families traveling together, minors (under 21) can stay in a separate stateroom without an adult, provided the cabin is directly across the hall or adjacent to the stateroom of their parent or legal guardian. This ensures that while the young adults or children have their own space, they are still under the immediate supervision of an adult in the traveling party, meeting the cruise line's strict safety and liability protocols.