CruiseStar
Modern cruise ships are designed around layers of safety equipment, trained crew, inspections, and international rules. But the choices passengers make still matter. Most preventable problems on a cruise are not dramatic shipwide emergencies; they are falls on wet decks, missed medication, gastrointestinal illness, too much alcohol, a child left unsupervised, a stolen phone in port, or an excursion that returns late.
This guide explains what to do before sailing, aboard the ship, and in port. It is designed for first-time cruisers, families, solo travelers, and anyone who wants practical precautions without spending the whole vacation worrying. If this is your first large ship, pair it with our guide to nine first-time mega-ship mistakes.
In an emergency, follow the captain and crew, not this article, another passenger, or social media. Ship-specific instructions always take priority.
Before the cruise: prepare for the problems that are hard to solve at sea
Start with documents. Carry the passport or other identification required for every country on the itinerary, and check the cruise line's rules rather than assuming a closed-loop sailing needs nothing. The US Department of State recommends that cruise passengers travel with a passport book, even when it is not strictly required, because an illness, injury, mechanical problem, or missed departure could force you to fly home internationally.
Save digital and paper copies of your passport identification page, insurance details, prescriptions, emergency contacts, cruise booking, and the ship's port-agent information. Keep copies separate from the originals. Leave the itinerary with someone at home and make sure they know how to reach the cruise line in an emergency.
Review travel insurance carefully. A policy that covers cancellation may not cover treatment aboard ship, care in a foreign hospital, or medical evacuation. Confirm limits, exclusions, pre-existing-condition rules, and whether the insurer pays providers directly or reimburses you later. Medicare and many domestic health plans provide limited or no coverage outside the United States, while a complex evacuation can be extremely expensive.
Pack prescription medicine in its original labeled container in your carry-on, not checked luggage. Bring enough for the trip plus a delay, and check whether each destination restricts your medication. Include a written medication list with generic names, doses, allergies, medical conditions, and an emergency contact. Ask your clinician before sailing if you have unstable heart or lung disease, a weakened immune system, a recent operation, a high-risk pregnancy, or another condition that could be difficult to manage far from a hospital.
Put safety essentials in your carry-on
Checked bags can take hours to reach the cabin. Keep anything you cannot safely spend a day without in the bag that stays with you:
- Passport, identification, boarding documents, and payment cards
- Prescription medicine and essential medical supplies
- Glasses, hearing-aid batteries, mobility-device chargers, and other assistive equipment
- Sunscreen, a refillable water bottle, and any clinician-approved motion-sickness treatment
- One change of clothes and appropriate footwear
- Phone, charging cable, insurance details, and emergency contacts
Do not pack prohibited heating devices, weapons, recreational drugs, or other restricted items. Cruise-line lists vary, but irons, hot plates, candles, and many extension cords are commonly prohibited because of fire risk. Check your line's current policy before packing rather than relying on an old social-media list.
Take the muster drill seriously
Your muster station is the assigned place where you report during certain emergencies. Find it before sail-away, complete every required part of the safety drill, and make sure everyone in your cabin understands the route. Digital check-in does not make the information optional. International SOLAS rules require newly embarked passengers to receive safety instructions, including what to do in an emergency and how to use lifejackets.
During the drill, learn the emergency signal, your station letter, where lifejackets are stored, whether children receive identification wristbands, and which route to use if the normal corridor is blocked. Read the emergency card on the back of the cabin door. Walk the route once instead of assuming you will follow a crowd later.
Do not take a lifejacket to the station unless the ship tells you to. Procedures differ by ship, and carrying one unnecessarily can create trip hazards. If you have limited mobility, hearing or vision loss, use oxygen, or may need evacuation assistance, tell guest services early so the ship can explain its procedures and record the assistance needed.
The CLIA operational safety policies describe industry measures covering passenger muster, emergency instructions, lifejacket stowage, fire safety, bridge procedures, and severe-weather preparation. Your job as a passenger is simpler: know where to go, listen, and follow crew directions promptly.
Prevent slips, falls, and injuries on deck
Falls are among the most ordinary cruise injuries, and ships combine several risk factors: motion, stairs, raised thresholds, polished floors, wet pool decks, wind, and unfamiliar layouts. Use handrails, especially on stairs and in rough weather. Wear shoes with grip instead of walking barefoot away from the pool. Slow down around wet-floor signs, deck drains, buffet spills, and doors that can move suddenly in the wind.
Never sit, stand, or climb on a railing. Do not lean over a balcony to take a photo, retrieve an object, or look into the next cabin. Keep furniture away from balcony rails when children are present. If an item goes overboard, report it; do not try to recover it yourself.
Ship movement may become noticeable before an announcement is made. When conditions worsen, put loose items away, avoid carrying hot drinks on stairs, keep one hand free for a rail, and follow any closure signs on outdoor decks. Crew may close pools, promenades, or upper decks even when the weather looks manageable from a sheltered area.
Be careful around watertight doors, crew-only areas, mooring equipment, and restricted decks. A shortcut through a marked service area is not worth the risk. Never open, block, or tamper with fire doors, alarms, smoke detectors, sprinklers, lifejackets, lifebuoys, or emergency signs.
Use the cabin and balcony safely
Once inside the cabin, locate the two nearest exits and count the number of doorways between your room and the closest stairwell. That can help if smoke or failed lighting reduces visibility. Keep the corridor and cabin doorway clear of luggage, strollers, and mobility equipment, and never wedge a fire door open.
Lock the cabin and balcony doors when appropriate, store passports and valuables in the safe, and verify a caller before opening the door. Do not publicly announce your cabin number or write it where a lost keycard can identify the room. A keycard should be treated like a hotel key, not worn with the cabin number visible.
Balcony doors can be heavy, and wind pressure can make doors slam. Keep fingers clear, supervise children, and use the child lock if provided. Never leave a young child alone on a balcony, even briefly, and do not move chairs or tables next to the rail.
Reduce the risk of norovirus and other illness
Cruise ships do not create norovirus, but a contagious illness can spread quickly when thousands of people share dining rooms, railings, elevator buttons, and serving utensils. The most effective everyday step is frequent handwashing with soap and water, especially after using the toilet and before eating. Hand sanitizer is useful when a sink is unavailable, but the CDC specifically advises passengers not to rely on sanitizer alone for gastrointestinal illness.
Do not serve yourself from a buffet after touching your face, coughing into your hand, or helping a sick child without washing again. Use serving utensils, avoid touching food you will not take, drink safe water, and do not eat food that appears undercooked or has been sitting at an unsafe temperature.
If you develop vomiting, diarrhea, fever, breathing difficulty, or another concerning symptom, call the medical center promptly and follow its instructions. Do not assume a vomiting child merely has seasickness. Leave an area where someone has vomited or had diarrhea and notify crew so trained staff can isolate and disinfect it. The CDC's healthy cruising guidance recommends reporting illness early and complying with temporary isolation when advised.
Bring routine vaccines up to date and review destination-specific advice before travel. Respiratory infections spread in crowded indoor spaces too; consider extra precautions if you are at higher risk, and avoid exposing others when sick.
Handle seasickness, sun, heat, and dehydration early
Motion sickness is easier to manage before symptoms become severe. If you are prone to it, discuss options with a pharmacist or clinician before the trip because common medicines can cause drowsiness and may interact with alcohol or prescriptions. A cabin near the ship's center and on a lower deck generally experiences less motion than one high up at the bow or stern. Fresh air, a view of the horizon, rest, and light meals help some travelers.
Heat and sun can be more dangerous than passengers expect because breeze makes the deck feel cooler while UV exposure remains high. Use broad-spectrum sunscreen, reapply it, wear a hat and protective clothing, seek shade, and drink water regularly. Increase caution during port hikes and beach excursions, where shade and drinking water may be limited.
Persistent vomiting, confusion, fainting, chest pain, severe shortness of breath, signs of stroke, a serious allergic reaction, uncontrolled bleeding, or a significant head injury needs urgent medical attention. Call the ship's emergency number instead of walking an unstable person through the corridors.
Know how onboard medical care works
Cruise ships have medical facilities, but they are not full-service hospitals. CLIA-member lines use medical-facility guidance that includes qualified medical coverage, examination space, emergency equipment, and the ability to stabilize many conditions. A patient who needs surgery, advanced imaging, prolonged intensive care, or specialist treatment may be transferred ashore or medically evacuated.
Find the medical center's location, regular hours, and emergency number on embarkation day. Ask about costs and insurance paperwork when the situation is not urgent, but never delay emergency care to debate billing. Keep receipts, clinical notes, test results, and discharge instructions for an insurance claim and for follow-up care at home.
If you have diabetes, severe allergies, epilepsy, or another condition that could affect emergency treatment, carry medical identification and make sure your travel companion knows where medication is stored. Do not share prescriptions or take medication offered by another passenger.
Drink responsibly and protect your judgment
Alcohol magnifies several shipboard risks at once: poor balance, dehydration, unsafe swimming, conflict, missed medication, and bad decisions in port. Drink more slowly than you would on land, alternate with water, eat regularly, and stop before your coordination changes. A beverage package is a pricing arrangement, not a target. Our guide to what cruise fares may include explains why packages and policies need to be checked separately.
Never leave a drink unattended or accept an open drink from someone you do not trust. Stay with companions who appear impaired, and contact ship security or medical staff if someone becomes difficult to wake, confused, injured, or separated from the group. Do not combine alcohol with sedating motion-sickness medicine, sleep aids, or other drugs unless a clinician has confirmed it is safe.
Swimming after drinking is especially risky. Pools may be shallow, crowded, moving with the ship, or unsupervised. Read posted depth and lifeguard information, do not dive unless expressly permitted, and never rely on flotation toys as safety equipment.
Personal security still matters at sea
A ship is a controlled environment, not a crime-free one. Use the same judgment you would in a resort or city: lock the cabin, secure valuables, meet new people in public areas, tell a companion where you are going, and avoid isolated decks or corridors when impaired. Parents should set clear check-in times and boundaries for teenagers rather than assuming the ship itself provides supervision.
If you experience or witness assault, harassment, theft, stalking, or another threatening situation, move to a safe public place and contact ship security immediately. Ask for medical care when needed. Preserve messages, clothing, photos, names, times, and locations rather than deleting or cleaning potential evidence. CLIA's shipboard security policies describe incident reporting, evidence preservation, law-enforcement contact, and victim-support expectations for member lines.
Use the cabin safe for passports, excess cash, and small electronics. Carry only what you need ashore, shield your PIN, and avoid discussing expensive belongings or travel plans with strangers. Ship Wi-Fi is a shared network, so keep devices updated, use multifactor authentication, and avoid sensitive financial work on networks you do not trust.
Keep children and teenagers safe
Make one adult explicitly responsible for a young child around pools, balconies, stairs, and open decks. 'Everyone is watching' often means nobody is. Stay within reach of weak swimmers, use properly fitted flotation devices where appropriate, and do not assume a lifeguard is present. Hot tubs can have age, temperature, and health restrictions; follow the posted rules.
On the first day, show children how to identify uniformed crew, what to do if separated, and why they must never enter another passenger's cabin. Teach them their full name and muster station, but tell them not to share their cabin number publicly. Photograph children each morning so you have a current image and outfit description if someone becomes lost.
Understand youth-program check-in, pickup authorization, self-sign-out rules, age groups, and communication procedures. Decide in advance whether an older child may roam alone, use elevators, visit friends' cabins, or leave the youth area without an adult. Rules should match the child's judgment, not simply the freedom other families allow.
Stay safe when traveling solo
Solo cruisers should leave plans with a trusted person, avoid sharing that nobody expects them back, and use the ship's official app or check-in system when available. Meet unfamiliar passengers in busy public venues and arrange your own transport rather than becoming dependent on someone you just met.
In port, send an itinerary or live location to a trusted contact, carry the ship's contact information, and set a return alarm well before all-aboard time. If a situation feels wrong, enter a hotel, shop, restaurant, or other staffed location and arrange verified transportation back to the port.
Travelers with disabilities or medical needs should contact the cruise line before sailing to discuss accessible evacuation, equipment, refrigeration, oxygen, tender ports, and excursion limitations. Do not assume every port or transfer is accessible simply because the ship is.
Treat every port as a separate destination
Research each stop, including local laws, health concerns, weather, transport, crime patterns, and travel advisories. Enrolling in the State Department's Smart Traveler Enrollment Program may help US travelers receive destination alerts. Travelers of other nationalities should use their own government's equivalent service.
Know the difference between ship time and local time, confirm the all-aboard deadline, and plan to return with a generous buffer. A ship-sponsored excursion generally coordinates with the vessel if the group is delayed; an independent booking usually does not carry the same protection. That does not make every independent tour unsafe, but it makes operator vetting and timing your responsibility.
Use licensed or clearly identified transportation, agree on fares before departure where meters are not standard, wear seatbelts when available, and use helmets for bikes or motorized activities. Avoid unregulated rentals and excursions whose equipment, guides, weather limits, or insurance are unclear. Never jump from cliffs, piers, or boats without a reputable operator confirming conditions.
Carry the port-agent number and enough identification to handle an emergency, following the destination and cruise line's guidance on whether the original passport should stay aboard or travel with you. Keep a separate copy. If you miss the ship, contact the port agent and cruise line immediately rather than relying on advice from bystanders.
What to do during a shipboard emergency
Stop, listen, and identify the announcement before acting. An alarm may call crew to stations without requiring passengers to move. If passengers are instructed to report, go to the assigned muster station by the directed route, use stairs unless crew says otherwise, and do not return for luggage. Bring essential medication only if it is immediately accessible and doing so does not delay evacuation.
Follow crew instructions even if another passenger gives conflicting advice. Do not livestream, crowd stairwells, block corridors, hold elevator doors, or go onto an open deck to watch. Keep children beside you and assist your own party without obstructing trained responders.
If you see smoke or fire, activate an alarm or call the emergency number, give the exact location, close doors as you leave if safe, and move away. Do not attempt to fight a fire unless it is tiny, you have a clear exit, and you know how to use the extinguisher. If someone goes overboard, shout for help, throw a nearby lifebuoy if accessible, point continuously at the person, and alert crew, never enter the water after them.
A practical cruise safety checklist
Before leaving home:
- Verify passports, visas, prescriptions, insurance, and emergency contacts
- Review health and travel advisories for every destination
- Put medication and documents in the carry-on
- Download the cruise-line app and save offline copies of essential information
- Arrange accessibility or medical accommodations in advance
On embarkation day:
- Complete muster requirements and walk the route to the station
- Read the cabin emergency card and save the ship's emergency number
- Locate the medical center and nearest stairwells
- Set child, teen, and group check-in rules
- Store valuables and keep corridors clear
During the sailing:
- Wash with soap and water before eating and after using the restroom
- Use handrails and shoes with grip; never climb or sit on railings
- Supervise children directly around water and balconies
- Limit alcohol and never swim while impaired
- Report illness, hazards, threats, and injuries promptly
- Check ship time and return early from every port
The bottom line
Cruise safety is mostly preparation plus ordinary good judgment. Know the emergency plan, protect your health, respect barriers and weather closures, stay aware around alcohol and water, supervise children, and leave enough margin in port. Those habits reduce the risks passengers can control while the crew handles navigation, engineering, fire protection, security, and emergency response.
Before choosing a ship, browse CruiseStar's ship catalog for vessel pages, sailor ratings, and reviews. For a broader look at how ships are inspected, see our cruise industry statistics and sanitation section.