A week cruise fits in a carry-on. Ships have laundry, cabins are small, and the dress codes people fear are mostly optional now — but security confiscates a surprising list of things, and embarkation day has its own luggage logic. Pack in this order.
The capsule math
A week at sea needs about twelve outfits, not twenty:
- 5 tops, 3 bottoms, 1 light layer — the ship is air-conditioned everywhere, even in the Caribbean.
- 2 swim sets, so one is always dry.
- 2 dinner outfits: most lines run one or two "evening chic" nights a week, and a collared shirt or a dress that re-wears covers them. Full formal is genuinely optional on every mainstream line now.
- 1 set of walking shoes already broken in — new shoes on port days are the most common self-inflicted injury in cruising.
- A fold-flat tote for port days, a light rain shell, and a hat with a strap (deck wind).
Roll everything, wear the bulkiest shoes on travel day, and the whole list fits a standard 22-inch carry-on with room for a pharmacy kit.
What the ship provides, so you don't pack it
Towels (cabin, pool and beach), hair dryer, basic toiletries, and laundry — self-service machines on some lines, wash-and-fold bags for $20–40 on most. Sea sickness bands and tablets are sold aboard at a markup; pack your own.
What security takes: the confiscation list
Cruise terminals run airport-style security with a cruise-specific banned list. The items that surprise first-timers:
- Irons and steamers: banned as fire hazards on every line. Cabins have none; wrinkle-release spray or the shower-steam trick is the answer.
- Surge protectors: banned; the ship's electrical system can't distinguish them from faults. Plain non-surge multi-plugs are fine on most lines.
- Hard liquor and beer: confiscated at boarding. Most lines allow one bottle of wine per adult at embarkation, sometimes with a corkage fee.
- Drones, kettles, candles, extension leads: all on the banned lists. Check your line's page — Royal Caribbean and Carnival both publish the full list — the week before you sail.
The day-one bag strategy
Your checked suitcase may not reach the cabin until dinner. Everything you want before then goes in a small day bag you keep with you: swim set, medication, documents, phone charger, and a change of shirt. First-timers who pack swimwear in checked luggage spend embarkation afternoon watching the pool from a window.
The five-minute version
- Twelve outfits, two swim sets, two dinner looks, broken-in walking shoes.
- Towels, dryer, toiletries, laundry all aboard — don't pack them.
- No irons, no surge protectors, no liquor; one wine bottle per adult usually OK.
- Keep a day bag with swimwear, medication and documents for embarkation afternoon.