Infants must be a minimum of 6 months old on the sailing date for most voyages. For transatlantic, transpacific, Hawaii, Australia and South America sailings ? and any with 3 or more consecutive days at sea ? the minimum age is 12 months. *Please see all applicable Terms & Conditions for Promotions here.

On Royal Caribbean International, the minimum age requirement for an infant to sail depends on the specific itinerary and the number of consecutive "at sea" days. For the majority of cruises (such as those in the Caribbean, Bahamas, or Europe), an infant must be at least 6 months old on the first day of the cruise. However, for "Transatlantic," "Transpacific," "Hawaii," and select "South American" cruises—or any itinerary that includes three or more consecutive days at sea—the minimum age requirement increases to 12 months old. This policy is strictly enforced for safety and health reasons, as medical facilities on board are not equipped to handle neo-natal emergencies. It is also important to note that children must be fully potty-trained to use the main swimming pools and whirlpools; however, many modern Royal Caribbean ships (like the Icon or Wonder of the Seas) feature a dedicated "Baby Splash Zone" specifically designed for infants and toddlers who are still in swim diapers. In 2026, the line remains one of the most family-friendly options, but these age-gated health and safety protocols are foundational to their operations.