Bottled water is allowed in your cabin, but cruise lines have strict rules about how much and what type
Yes, you can bring bottled water on a cruise ship. Most major cruise lines permit passengers to pack unopened, factory-sealed bottled water in their checked luggage — typically one case per stateroom for the duration of the voyage. However, the rules vary by cruise line and by how you pack it, so checking your specific line's policy before you board is essential.
The reason cruise lines allow some bottled water is straightforward: they know passengers want drinking water they trust, and they want to avoid disputes at the gangway. But they also have safety and revenue concerns. Water is heavy, takes up cargo space, and the cruise line sells bottled water onboard at a markup. That tension shapes the actual rules you'll encounter.
Key Takeaways
- Unopened, factory-sealed bottled water packed in checked luggage is permitted on most cruise lines, usually limited to one case per cabin.
- Water in carry-on bags is almost always forbidden because cruise lines treat it as a security risk and a liquid that could spill.
- Opened bottles, refillable bottles, and large quantities beyond the stated limit will be confiscated at embarkation.
- Tap water on cruise ships is safe to drink and treated to the same standards as municipal water supplies, so bringing water is optional rather than necessary.
- Some cruise lines offer beverage packages that include bottled water, which may be cheaper than buying individual bottles onboard.
How much bottled water each cruise line allows
Carnival Cruise Line permits one case of bottled water per stateroom in checked luggage only. Royal Caribbean allows the same — one case per cabin, sealed and in checked bags. Disney Cruise Line permits one case per stateroom. Norwegian Cruise Line allows one case per cabin. Princess Cruises and Celebrity Cruises follow similar policies, though the exact limit can shift, so contacting the line directly before your sailing is the safest move.
The word "case" typically means a 24-pack of standard 16.9-ounce bottles or the equivalent volume. A case of 12 larger bottles may or may not count as one case — it depends on the line's interpretation. If you are unsure whether your water will fit the limit, email the cruise line's customer service with a photo or the exact product name, and they will tell you whether it is acceptable.
These limits explore per stateroom, not per person. If you are traveling with three people in one cabin, you still get one case, not three. If you are in two adjoining cabins, you can bring one case to each cabin.
Why water in carry-on bags is not allowed
Cruise lines classify bottled water in carry-on luggage the same way airport security does: as a liquid that could pose a safety risk or spill and damage the ship's systems. Even though the bottle is sealed, security staff at the cruise terminal will confiscate it before you board. This rule is consistent across all major cruise lines.
If you want water available when you board, pack it in your checked bag so it arrives in your cabin before you need it. Checked luggage is typically delivered to your stateroom within a few hours of embarkation, though on busy sailing days it can take longer. Plan accordingly if you have a medical reason to drink water when ready upon arrival.
What happens if you bring more than the limit
Cruise line staff inspect luggage at the terminal before you board. If they find water beyond the stated limit, they will remove the excess bottles and discard them. You will not be refunded, and you will not be allowed to keep the extra water. This is not negotiable — the policy is enforced uniformly.
Some passengers try to pack water in multiple small bags or hide it in other luggage, but this rarely works. Terminal staff are trained to spot water, and attempting to circumvent the policy can result in being denied boarding. It is not worth the risk.
Tap water on cruise ships is treated and safe
Cruise ships are required by international maritime law to maintain potable water systems that meet or exceed the standards of the U.S. Environmental Protection Agency and similar bodies in other countries. The water that comes from your cabin faucet has been tested, treated, and monitored. It is not the same as tap water in a port city — it is actively managed by the ship's crew.
If you have a specific health condition that requires bottled water, or if you straightforward prefer the taste, bringing one case is a reasonable choice. But from a safety standpoint, you do not need to bring water. The ship's tap water is potable and safe for brushing teeth, drinking, and cooking.
Beverage packages and onboard water purchases
Most cruise lines sell bottled water onboard at prices ranging from $2 to $4 per bottle, depending on the line and the bottle size. Over a week-long cruise, this adds up quickly. Some lines offer beverage packages that include bottled water, soft drinks, and alcoholic drinks for a flat daily rate. These packages sometimes cost less than buying water à la carte, especially if you drink multiple bottles per day.
Check whether your cruise line offers a beverage package before you sail. If you are already purchasing a package that includes alcohol or specialty drinks, the water may be included at no additional cost. If you are not buying a package, bringing one case of water from home is usually cheaper than buying bottles onboard.
What to do if you have a medical need for specific water
If you require distilled water, mineral water, or water from a specific source for medical reasons, contact the cruise line's guest services or medical department before your sailing. Explain your situation and ask whether you can bring additional water beyond the standard limit. Some lines will make exceptions for documented medical needs, though they may require a doctor's note or a letter from your physician.
Do not assume an exception will be granted — ask in writing and get a response in writing before you pack. If the line denies your request, you can ask whether they stock the specific type of water you need onboard, or whether the ship's medical staff can provide guidance on alternatives.
Frequently Asked Questions
Can I bring water in my carry-on bag?
No. All cruise lines prohibit bottled water in carry-on luggage, even if the bottle is sealed. Water must be packed in your checked bag. Security staff at the cruise terminal will confiscate any water found in carry-on bags before you board.
What if I buy water at the airport after security and try to bring it onboard?
Cruise terminal security will confiscate it. The rule applies to all bottled water in carry-on bags, regardless of where you purchased it. Pack water in checked luggage only.
Can I bring opened bottles of water from my home?
No. Cruise lines require water to be unopened and factory-sealed. Opened bottles will be removed at the terminal. This rule exists for safety and sanitation reasons.
Is the tap water on a cruise ship safe for people with sensitive stomachs?
The tap water meets safety standards, but if you have a sensitive stomach or are concerned about adjustment to ship water, bringing one case of bottled water is a reasonable precaution. You can also ask the ship's medical staff for recommendations once onboard.
Do I need to declare the water I'm bringing?
No formal declaration is required, but cruise line staff will see it during luggage screening. Be honest if asked, and do not attempt to hide water in your bags. Transparency avoids problems at embarkation.