What Not to Pack on a Cruise: 8 Lines Compared

The packing lists are wrong because they average eight different rulebooks

Almost every cruise packing article treats prohibited items as one list. It is eight lists, and they contradict each other on the item people most want to bring: the power strip. Pack for Carnival’s rules and sail on Royal Caribbean and the strip is gone before you reach the cabin.

This page is the comparison nobody publishes properly: one row per item, one column per line, each cell taken from that line’s own policy page. Where a line publishes nothing, the cell says so, because silence is not permission.

Skip this page if you have sailed the same line five times and already know its list. Everyone else, especially anyone switching lines or booking a first cruise, should read the power-strip section before buying anything.

How this comparison was built

VoyageHacks read the published prohibited-items and safety pages of Royal Caribbean, Carnival, Norwegian, MSC, Princess, Celebrity, Disney Cruise Line and P&O Cruises on 21 September 2026 and recorded what each one states about the same list of items. Nothing in the table below is inferred from a travel blog or from another line’s rule.

Two sourcing limits are stated plainly rather than hidden. MSC renders its prohibited list inside JavaScript accordions behind an authentication wall that refuses automated retrieval, so the MSC cells come from a search index of the same official MSC pages rather than from a live read: treat them as official at one remove. Norwegian’s prohibited-items page served its German-language copy at every locale path tried, so Norwegian’s rules are described here rather than quoted, and the English page is worth re-reading before you pack.

A cell that reads not published means that line’s policy page does not address the item. Every line reserves final discretion to its security officer, so an unpublished item is a risk you are choosing to take, not a permission you have been given.

The full comparison: what each line actually bans

Power strips and extension cords: the biggest disagreement in cruising

A power strip is a multi-outlet bar on a cord; a surge protector is a strip with a component that diverts voltage spikes to ground, which is the part ships object to because a ship’s floating electrical system has no ground in the household sense. The internet has compressed that into one rule: bring a non-surge strip and you are fine anywhere. That is wrong on three of the eight lines here.

Carnival permits the strip itself. Its permitted list names power strips, multi-outlet adapters and extension cords without surge protection.

Royal Caribbean bans the entire category. Its prohibited-items policy lists extension cords, power strips and multi-plug outlets among electrical items not designed for personal grooming, with no surge distinction anywhere. The single exception it publishes is device and USB chargers marked with a recognized US or European conformity certification.

Disney bans the category and names the surge protector alongside it: extension cords, power strips, multi-plugs and surge protectors, listed together.

Celebrity bans electrical extension cords and does not mention power strips or surge protectors at all, despite sharing a corporate parent with Royal Caribbean. Unpublished is not permitted, and Celebrity security still has discretion.

The honest conclusion: the only lines whose published text actually permits a non-surge strip are Carnival and Princess. If you buy one of the non-surge travel power strips sold specifically for cruises, check your own line’s page in the week before you sail, because the product category exists ahead of the rules, not because of them.

Princess contradicts itself three times on one page

Princess’s pre-cruise FAQ says three things about power strips, and two of them cannot both be true.

1. The prohibited list bans electrical devices with surge protectors, naming multi-plug box outlets and adaptors, power strips and extension cords.
2. An asterisked footnote on the same page says non-surge strips and extension cords and electric extension cords with surge protectors are allowed on board when used with proper caution and after inspection and testing by the onboard electrical department, with anything judged hazardous removed and returned on the last day.
3. A packing-advice passage further down the same page says extension cords and surge-protected power strips are generally not permitted onboard.

We are reporting that contradiction rather than resolving it, because resolving it would mean choosing which sentence Princess meant. The only item every version of the Princess text permits is a non-surge strip, subject to the electrical department’s check. Pack accordingly and expect to hand it over for inspection.

Irons, steamers and anything with a heating element

All eight lines ban clothes irons and garment steamers. Royal Caribbean states the reason in its own words: it does not provide irons in staterooms because they constitute a fire hazard. Kettles, coffee makers and hot plates fall under the same heating-element logic everywhere.

Where the lines differ is what they give you instead, and that decides whether you pack wrinkle-prone clothes at all.

Carnival’s own laundry answer adds ship-level detail worth checking against your sailing: Carnival Celebration, Carnival Festivale, Carnival Jubilee and Mardi Gras have ironing rooms but no washers or dryers, and Carnival Firenze, Carnival Luminosa and Carnival Venezia have neither.

One inconsistency, flagged rather than smoothed over: a Norwegian regional FAQ states that irons and ironing boards can be requested through housekeeping or the Guest Services Desk. That sits oddly beside Norwegian’s outright ban on irons as heating-element items, and it may be region-specific or stale. Do not treat it as a fleet-wide guarantee.

P&O publishes the cleanest version of the rule: electrical equipment with heating elements is not permitted, except hair styling tools such as straighteners. That exception is near-universal. Hair straighteners and curling irons are explicitly allowed on Royal Caribbean, Carnival, Norwegian, MSC, Disney and P&O, and on Celebrity if certified low wattage.

Leave the travel steamer at home for this trip. It is the single most commonly confiscated item on a cruise packing list precisely because it is allowed in a hotel.

Knives, scissors and tools: the limits differ by more than double

Define the term first, because the lines do not use it the same way: the published limit is a blade length, measured from tip to the point where the cutting edge meets the handle, not the overall length of the folded tool.

• Disney: banned regardless of blade length.
• Princess: banned over 6.35 cm, which is 2.5 inches, or 1.25 cm in width. Princess explicitly permits a small locking pocket knife under that size, which is the most permissive published pocket-knife statement in this set.
• Norwegian: banned at 4 inches, which is 10.16 cm, and above.
• Royal Caribbean: banned over 7 inches for knives, sharp objects, scissors and tools, with grooming exceptions and dive knives allowed in checked bags.

Scissors follow their own pattern. Celebrity allows blades under 4 inches. Disney bans scissors over 4 inches. Royal Caribbean’s 4-inch carve-out is narrower than either, covering scissors used solely for trimming facial hair. Carnival bans scissors outright and will consider scrapbooking or quilting scissors only with prior approval from Security Services.

Tools are simpler: Princess bans any type of hand or power tool, Disney bans power tools, hand tools and toolboxes, and Royal Caribbean bans hardware tools and screwdrivers over 7 inches. A multitool with a blade fails on two counts at once.

The practical rule: a 2.5 inch blade clears every line here except Disney, and nothing clears Disney.

Drones: four lines, four different answers

No item in this comparison is treated more inconsistently.

• Norwegian and Disney ban them outright. Disney’s wording covers remote-controlled devices generally, including airplanes, drones and toy vehicles.
• Carnival lets you bring one and takes it from you. You declare it at embarkation, the Chief Security Officer holds it for the voyage, and you check it out only at approved ports that are not the line’s private destinations.
• Celebrity allows land use only. The drone is stored in the stateroom and never operated on the ship. Celebrity states that a drone flown on board is confiscated for the cruise, with a Guest Conduct warning and possible disembarkation at your own expense.
• MSC allows cabin storage but forbids use on board, per its published policy.
• Princess bans them except for company-sponsored events pre-approved by Fleet Security.
• Royal Caribbean and P&O do not publish a drone rule by name. That is silence, not clearance.

If you fly a drone and you have not yet booked, this is a booking decision, not a packing decision.

Speakers, walkie-talkies and streaming sticks

Carnival bans every external speaker, listing boom boxes, Bluetooth, portable, wireless and any other external speaker, and requires headphones in public areas. No other line in this comparison publishes that rule. It is the most surprising line-specific ban on the list, because a small Bluetooth speaker is standard hotel-room kit.

Walkie-talkies split two ways. Royal Caribbean permits them within stated technical limits: a maximum 10-mile range, 5 W output, internal voice only and no external antenna. Norwegian bans them. Nobody else publishes a rule, which matters because walkie-talkies are how families stay in touch when shipboard wifi is a paid add-on.

Streaming sticks reach the same outcome by two different routes. Disney bans Fire Stick, Roku, Chromecast and Apple TV by name. Carnival and Royal Caribbean do not ban the device at all: they have disabled the stateroom TV ports, so it simply will not connect. Either way it stays home.

Door decorations: a Disney rule, and everyone else’s silence

Cruise door decorating is a real hobby, and exactly one line in this comparison publishes hardware rules for it.

Disney’s door-decoration page states four things:

• A tasteful magnetic sign is welcome on your stateroom door.
• Tape and other adhesives, including gel adhesives, must not be used to affix items to the door.
• Over-the-door hanging organizers and over-the-door hooks are prohibited.
• Damage to a stateroom door carries a fee of 100 dollars per incident.

Disney adds one detail that decides the whole plan for some guests: magnets will not stick to the wooden concierge stateroom doors on Disney Dream and Disney Fantasy.

Royal Caribbean sits in an odd middle position. It sells official magnetic door-sign decor through its own gift shop, while its Guest Health, Safety and Conduct Policy prohibits placing signs, banners or decorations anywhere on the ship interior, stateroom doors included, without ship management’s express permission. Norwegian bans paper door decorations specifically, on flammability grounds, which is the one English sentence that survives on its otherwise German-served policy page.

No other line in this set publishes a rule on over-the-door hardware either way. That is not the same as permission: cabin doors swing outward into a corridor, and a loaded over-door organizer is the reason Disney gives for banning them. The defensible summary is that Disney prohibits them, the others are silent, and magnetic hooks are the storage fix with no published objection anywhere. Our cruise cabin organizer guide covers the storage layouts that work inside those constraints.

Power banks, chargers and the charging habit Carnival publishes

Carnival is the only line here that publishes a handling rule rather than a yes-or-no.

• Power banks, portable chargers and e-cigarettes must travel in carry-on luggage only.
• They must not be left charging unattended in the stateroom.
• They must be kept away from heat sources, including direct sunlight, even when exposure occurs through a window.

Norwegian bans large batteries. P&O prohibits most batteries, excepting small personal-camera and medical-equipment batteries. Princess subjects them to an electrical safety check. Royal Caribbean, MSC, Celebrity and Disney do not publish a power-bank rule.

That single Carnival paragraph is the argument for packing a power bank in the day bag you carry aboard rather than in the checked case, and for charging it while you are in the cabin rather than while you are at dinner. Airline lithium rules point the same way, so the habit travels.

What happens when security finds it

This is the section that decides how much risk you are actually taking, and it is the one no packing list includes. The same mistake has different consequences by line.

• Celebrity places a Prohibited Items Receipt inside the luggage and returns the item at the end of the voyage.
• Carnival disposes of prohibited items with no compensation. Anything Carnival takes is gone.
• Royal Caribbean places a bag found to contain prohibited items in a separate area for pickup, rather than delivering it to the stateroom. You go and collect it, which costs you embarkation afternoon.
• Princess returns items removed by the electrical department on the last day of the cruise.
• Celebrity escalates a drone flown on board beyond confiscation, to a Guest Conduct warning and possible disembarkation at your own expense.

So a contested 20 dollar power strip is a shrug on Celebrity and a total loss on Carnival, and a contested 800 dollar drone is a different calculation entirely. Pack the expensive contested item only on a line that publishes a return process.

The three things that are safe on every list

Products are the small part of this page. These are the items that appear on no prohibited list in this comparison, which is the only claim being made about them.

Magnetic hooks

Check price on Amazon →

Twenty neodymium hooks rated at 30 lb each, for a cabin whose walls and ceiling are steel. Buy them if you were planning an over-the-door organizer and now know Disney bans that hardware and nobody else has ruled on it. Skip them if you are sailing a Disney Dream or Disney Fantasy concierge stateroom, where the door is wood and the magnet does nothing. The alternative in that case is a freestanding hanging organizer inside the closet.

A retractable keycard lanyard

Your keycard opens the door, pays for everything and gets scanned at every gangway. On Princess ships it may also be what powers the stateroom: Princess publishes that power may run through a keycard slot, and removing the card can shut off power to the room. Buy one if you hate digging in pockets at the gangway. Skip it if your line issues a wearable medallion instead of a card, as Princess does on MedallionClass ships.

A waterproof phone pouch

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For tender boats, beach days and shore excursions, where the threat is water rather than a security officer. Buy one if your itinerary includes tender ports or a beach day. Skip it if your phone is already IP68-rated and you never swim with it. The alternative is a dry bag for the whole day pack.

Everything else worth carrying, including the case, the organizer and the charging kit, is in our cruise essentials guide and the wider travel gear hub.

Edge cases and what goes wrong

You are sailing a line you have never sailed. This is the whole failure mode. Every rule above was published by one company about its own ships, and none of them harmonise. Read your line’s page, not a list.

Your bag is checked and you are not there when it is screened. Checked bags are screened after you hand them to the porter, so you are not present to argue. That is why the confiscation-outcome section matters more than the rule itself.

You assumed silence meant yes. Most cells in the table above read not published. Security officers on every line retain final discretion, so an unpublished item is a coin flip at the scanner.

You packed for the hotel version of the trip. The steamer, the Bluetooth speaker and the streaming stick are all normal hotel kit and all banned or blocked somewhere here.

You are relying on cabin outlets you have not counted. Princess tells its own readers that cabins typically have a limited number of outlets and that planning ahead helps if you charge several devices. That is a cruise line saying the cabin is short of sockets. No line in this set publishes a reliable per-cabin count, so do not plan around one.

Your medication needs refrigeration. Princess publishes that stateroom refrigerators run at roughly 3 to 7 C and that guests without a refrigerator in the stateroom should contact its accessibility team, which confirms not every cabin has one. Carnival states plainly that it cannot provide refrigeration, storage or preparation for personal food items.

Your bag has not arrived and you need something from it. Royal Caribbean’s published position is that due to the volume of luggage on embarkation day, luggage may arrive after the sailaway. No line in this set publishes a guaranteed delivery time, so medication, documents and anything you need in the first few hours belongs in the bag you carry on.

Sources

Every page below was read on 21 September 2026 unless the page itself states a different last-updated date.

Policies change without notice and a line may update a page the week you sail. Re-read your own line’s prohibited-items page before you pack, and treat this table as the map of where the lines disagree rather than as a substitute for it.

Frequently Asked Questions

Are power strips allowed on cruise ships?

It depends entirely on the line, and the popular shorthand that a non-surge strip is fine everywhere is wrong. Royal Caribbean prohibits extension cords, power strips and multi-plug outlets with no surge exception, allowing only device and USB chargers carrying a recognised US or European conformity certification. Disney names extension cords, power strips, multi-plugs and surge protectors together on its prohibited list. Carnival permits power strips, multi-outlet adapters and extension cords without surge protection. Princess allows non-surge strips subject to an inspection by the onboard electrical department, and contradicts itself elsewhere on the same page.

Can I bring an iron or a steamer on a cruise?

No. Every line in this comparison bans clothes irons and garment steamers, and Royal Caribbean states plainly that it does not provide irons in staterooms because they constitute a fire hazard. Where you press clothes differs: Royal Caribbean has no self-service laundry at all and sells washing and pressing instead, while Carnival, Princess and Disney run self-service launderettes with irons and ironing boards. Hair straighteners and curling irons are a named exception on most lines, including P&O.

Can I take a drone on a cruise?

Four lines, four answers. Norwegian and Disney ban remote-controlled flying devices outright. Carnival lets you bring one, but you declare it at embarkation, the Chief Security Officer holds it, and you check it out only at approved ports that are not private destinations. Celebrity allows a drone to be stored in the stateroom and flown on land only. MSC allows cabin storage but forbids use on board. Princess bans them except for pre-approved company-sponsored events.

What happens if security finds a prohibited item in my bag?

That depends on the line too, and the difference is money. Celebrity places a Prohibited Items Receipt in the luggage and returns the item at the end of the voyage. Carnival disposes of prohibited items with no compensation, so anything Carnival confiscates is simply gone. Royal Caribbean holds a flagged bag in a separate area for pickup rather than delivering it to the cabin. Assume the strictest outcome when you are deciding whether an expensive item is worth the risk.

Can I use over-the-door hooks or hanging organizers in a cruise cabin?

Only Disney publishes a rule, and Disney bans them: over-the-door hanging organizers and over-the-door hooks both appear on its door-decoration page, which also charges a 100 dollar fee per incident for damage to a stateroom door. No other line in this comparison publishes a rule either way, which is silence rather than permission. Magnetic hooks and a tasteful magnetic sign are the sanctioned alternative on Disney, though magnets will not stick to the wooden concierge doors on Disney Dream and Disney Fantasy.

How big a knife can I bring on a cruise?

The published limits differ by more than a factor of two. Disney bans knives regardless of blade length. Princess bans blades over 6.35 cm, which is 2.5 inches, and explicitly permits a small locking pocket knife under that size. Norwegian bans blades of 4 inches and above. Royal Caribbean draws its line at 7 inches for knives, scissors and tools, with a narrow carve-out for grooming scissors under 4 inches. Pack for the strictest line you might sail.

The bottom line

Leave the iron, the steamer, the kettle and the streaming stick at home on every line. Leave the power strip at home unless you are sailing Carnival or Princess, and expect Princess to inspect it. Leave the over-the-door organizer at home if you are sailing Disney, and reach for magnetic hooks instead. Check your line’s own page the week you sail, because the eight rulebooks above agree on less than any packing list implies.

Then build the rest of the bag: the cruise essentials guide covers what to bring, the cabin organizer guide covers where to put it, and the travel gear hub has everything else.