Yes, you can wash clothes on a Caribbean cruise, but the method depends on the cruise line's "laundry culture." Many popular lines like Carnival, Princess, and Disney offer "Self-Service Launderettes" on most of their ships. These are small rooms with coin or card-operated washers and dryers, along with complimentary irons and ironing boards. This is the most cost-effective way to manage laundry during a long tropical voyage. On the other hand, lines like Royal Caribbean, Celebrity, and MSC do not offer self-service facilities; instead, they provide a "Wash and Fold" or "Valet Laundry" service. You place your dirty clothes in a provided bag, and your stateroom attendant takes them away to be cleaned for a fee (usually around $35 for a stuffed bag). Luxury lines like Regent Seven Seas or Viking often include laundry service for free in the cruise fare. If you just have a few small items, most cruise cabins have a retractable clothesline in the shower for "sink-washing" and air-drying swimwear.