Carnival Spirit · March 29, 2027 Roll Call

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.

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.

Cruise ships were built to entertain strangers, not introduce them. Here is what actually works onboard, what does not, and why the best connections start before you board.

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.