Getting sick on a cruise is one of those things nobody wants to think about when they’re looking forward to a holiday. But it does happen, and knowing what to expect before you board makes a real difference — especially for Australians, who face a few surprises around costs that most overseas cruise guides don’t cover.
How Likely Are You to Get Sick?
The honest answer is that most people cruise without any health issues at all. The illnesses that do occur tend to fall into three categories:
- Norovirus (gastro) gets the most headlines, but outbreaks affecting more than 3% of passengers are relatively rare given the millions who sail each year. Most sailings have no reported outbreak.
- Respiratory infections — colds, flu and similar — are actually more common than gastro, simply because you’re in close quarters with a lot of people for several days.
- Seasickness affects some people and not others. Australians sailing the Southern Ocean or crossing Bass Strait tend to feel it more than those on calmer tropical itineraries.
What Happens When You Feel Unwell Onboard
The process is straightforward. Report your symptoms to the ship’s medical centre and they take it from there.

| Visit the medical centre Every large cruise ship has a fully staffed medical centre with qualified doctors and nurses available around the clock. During regular hours you can walk in. Outside those hours, call the number in your cabin and someone will respond. They will assess your condition and decide on next steps. |

| You may be asked to stay in your cabin If your symptoms suggest something contagious, the medical team will ask you to remain in your cabin until you’re clear. This is standard procedure and not negotiable. Meals get delivered, but shore excursions and onboard activities are off the table until the doctor gives the all clear. |

| Your keycard may be deactivated Cruise lines take quarantine seriously. If norovirus or a respiratory illness is suspected, some lines will deactivate your keycard to discourage you from leaving your cabin. Ignoring quarantine instructions can result in being put off the ship at the next port. |

| The crew will look after you Being stuck in your cabin is frustrating, but you won’t be forgotten. Most cruise lines deliver meals to your cabin at no extra charge, and many will offer complimentary wifi to keep you connected. Guest services and medical staff check in regularly throughout the day. |

| You may be entitled to compensation If you spend time in quarantine, it’s worth asking about a future cruise credit for the days you missed. Some lines offer this automatically, others require you to request it. Travel insurance with cabin confinement cover can also reimburse you for prepaid shore excursions you couldn’t take. |
What the Medical Centre Can and Can’t Do
Every large cruise ship has a medical centre staffed by qualified doctors and nurses. Here’s a realistic picture of what they’re equipped for.
What they can handle
- Common infections — gastro, respiratory illness, flu
- Seasickness and dehydration
- Minor injuries, cuts and fractures
- Basic diagnostics — blood tests, X-rays, ECGs
- Dispensing prescription and over-the-counter medication
- Stabilising serious conditions until shore-side care can be arranged
What they can’t do
- Advanced surgery or specialist procedures
- Cardiac catheterisation or complex cardiac care
- Long-term monitoring of serious conditions
- Replace a hospital emergency department
The Costs Most Australians Don’t Expect
Medical care on a cruise ship is billed privately, regardless of where you’re sailing. These are the three things that catch most Australians off guard.

| Medicare won’t cover you — even on a domestic cruise The moment your ship leaves port, Medicare and your private health fund stop applying. This surprises a lot of Australians, particularly on domestic sailings between Australian ports. Even if you’re just off the coast of Sydney, any medical treatment onboard is billed at private rates and you’ll need to settle it yourself. |

| Onboard treatment costs add up fast A basic consultation with the ship’s doctor can run to a few hundred dollars. Add tests, IV fluids, medication or overnight monitoring and the bill climbs quickly. There have been cases of Australian passengers leaving a cruise with medical debts over AU$12,000. Travel insurance with cruise cover is the straightforward fix. |

| Evacuation is a different scale entirely If you need to be airlifted off the ship or transferred to a shore-side hospital, the costs are significant. Air evacuations in Australian waters can reach AU$50,000. In more remote parts of the Pacific they can exceed AU$100,000. This is the scenario travel insurance exists for. |
If Things Get Serious
If the ship’s medical team decides you need more care than they can provide onboard, the decision about what happens next rests with the doctor and the captain, not with you. Depending on how urgently you need treatment and where the ship is, you’ll either be disembarked at the next port and transferred to a local hospital, or evacuated by helicopter or tender if it can’t wait. The nearest suitable hospital may not be close, which is why the evacuation costs are so significant.
Before You Sail
A little preparation before you board makes a real difference if something does go wrong.
- Pack medications in your carry-on not your checked luggage, along with a written list of what you take and the dosages. If you’re disembarked at a foreign port, having this information on you matters.
- Check your travel insurance actually covers cruising — most standard policies require a cruise-specific add-on. Confirm it covers onboard medical treatment, evacuation and cabin confinement.
- Bring enough medication for the full trip plus a few extra days in case of delays or unexpected port changes.
- Get up to date on routine vaccinations before you sail. Flu and COVID vaccines in particular are worth doing before you board a ship with thousands of other people.
- Check your cruise line’s health policy before embarkation day. If you’re feeling unwell in the days before departure, know what your options are around rebooking or cancellation.
Travel Insurance: Don’t Skip the Cruise Add-on
Most Australians know to buy travel insurance before a cruise, but a standard policy often isn’t enough. Without a cruise-specific add-on, you may find more is excluded than you’d expect. Good cruise cover should include:
- Onboard medical treatment — consultations, medication, tests and monitoring
- Emergency evacuation — helicopter or air ambulance to a shore-side hospital
- Cabin confinement — reimbursement for prepaid shore excursions you couldn’t take
- Cancellation cover — if you’re too sick to board in the first place
- Missed port cover — if the ship diverts due to an onboard outbreak
Age limits apply with most insurers and premiums increase accordingly, so read the product disclosure statement carefully rather than just ticking the cheapest box at checkout.
Frequently asked questions
1. Does Medicare cover me on a cruise ship?
No, and this catches a lot of Australians off guard. The moment your ship leaves port, Medicare and your private health fund no longer apply — even on a domestic cruise sailing between Australian ports. Onboard medical treatment is billed at private rates, which is why travel insurance with cruise-specific cover is essential for every sailing, not just international ones.
2. What illnesses are most common on cruise ships?
Gastroenteritis (commonly caused by norovirus) gets the most media attention, but respiratory infections like colds and flu are actually more common given the close quarters. Seasickness affects a smaller number of passengers and depends largely on the conditions and the itinerary. Most people complete a cruise without any health issues at all.
3. What is the ship’s medical centre like?
Most large cruise ships have a fully equipped medical centre staffed by qualified doctors and nurses, available around the clock for emergencies. They can handle common infections, minor injuries, basic diagnostics like blood tests and X-rays, and can stabilise more serious conditions. They are not equipped to replace a hospital emergency department, and complex or specialist care will require going ashore.
4. What happens if I’m asked to stay in my cabin?
If the medical team suspects something contagious, they will ask you to remain in your cabin for a set period, typically 24 to 48 hours. Meals will be delivered to your door, and many lines offer complimentary wifi during this time. It is frustrating, but quarantine periods on ships are generally short and the crew will check on you regularly.
5. Can I be forced off the ship if I’m sick?
If the ship’s doctor determines that your condition requires care beyond what the medical centre can provide, disembarkation becomes the doctor’s call, not yours. You would be transferred to a hospital at the next suitable port, or evacuated sooner if the situation is urgent. Refusing medical advice in this situation is not an option cruise lines will accommodate.
6. What does onboard medical treatment cost?
A basic consultation can run to a few hundred dollars. Once you add tests, medication, IV fluids or monitoring, bills of several thousand dollars are not unusual. There have been cases of Australian passengers leaving a cruise with medical debts exceeding AU$12,000. All charges go onto your onboard account and must be settled before or at disembarkation.
7. What happens if I need to go to hospital ashore?
If the medical centre can’t manage your condition onboard, the ship will either disembark you at the next port for transfer to a local hospital, or arrange an evacuation by helicopter or tender if it’s urgent. The nearest suitable hospital may not be nearby, particularly on Pacific or remote itineraries, and the costs involved can be substantial without adequate insurance cover.
8. What should I do if I feel sick before I board?
Contact your cruise line as soon as possible. Most lines ask passengers to complete a health questionnaire at embarkation, and if you report symptoms like vomiting or fever you may be denied boarding on the day. Knowing your cancellation and rebooking options before you travel — and having insurance that covers pre-departure illness — means you won’t be caught out financially if this happens.
9. Do cruise lines clean the ship between sailings?
Yes. When a gastrointestinal outbreak has been reported during a voyage, ships undergo a thorough deep clean before the next group of passengers boards. Cruise lines follow outbreak prevention and response plans that include enhanced cleaning of cabins, dining areas and high-touch surfaces throughout the ship. Australian cruise vessels operating out of NSW are also subject to health monitoring by NSW Health.
10. Will the cruise line compensate me if I spend the trip sick in my cabin?
It depends on the cruise line and the circumstances. Some lines offer a future cruise credit for days spent in quarantine, though this is not universal and you may need to request it rather than wait for it to be offered. Travel insurance with cabin confinement cover is the more reliable way to recoup costs for prepaid activities and shore excursions you missed.

