Royal Princess · March 19, 2027 Roll Call

Royal Caribbean never banned door decorations, whatever you read. Here is what each cruise line actually allows, what gets taken down, and how to make your door do more than just find your room.

The single supplement can add 125-200% to your fare. Here is why it exists, which cruise lines have real solo cabins, which have none at all, and how to sail alone without paying for an empty pillow.

Find the best cruise lines for adults, from genuinely kid-free ships to lifestyle charters and adult-only retreats. Compare age restrictions, included perks, extra costs, and the fine print before booking.

Is an adults-only cruise worth the extra money? We examine advertised fares for two seven-night Caribbean sailings, gratuities, included extras and cabin differences to help you build a realistic budget.