No single ship is objectively the worst. The worst cruise ships in 2026 are really the lowest-rated ones: vessels that failed or barely passed a CDC sanitation inspection, older ships that reviewers keep calling worn and dated, and a few crowded mega-ships whose service doesn’t keep up with the passenger numbers. Below we list the ships that come up most often, explain the evidence behind each one, and say who might still enjoy sailing on them.
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This guide has been rewritten for 2026. Our earlier version listed mostly Costa and MSC ships, and some of those have since changed hands. Fleets, refits and inspection results change every year, so we now rely on public signals you can check yourself.
How we chose the lowest-rated cruise ships
We didn’t invent scores or average anonymous reviews into a fake league table. Every ship here was picked using one or more of these public signals:
- CDC Vessel Sanitation Program (VSP) results. The US Centers for Disease Control and Prevention makes unannounced inspections of ships calling at US ports. Scores run out of 100, and 85 or lower is a fail. The results are published online.
- Large passenger surveys. Consumer Reports’ 2026 survey of 18,850 members rated 19 ocean cruise lines on value, food, service, excursions and entertainment.
- Recurring review themes. These are complaints that keep turning up across Cruise Critic, Tripadvisor and industry round-ups for the same ship: wear and tear, crowding, queues or a mismatch between price and product.
- Age and refit history. Ships that haven’t had a major refurbishment for years tend to collect the same complaints about cabins, bathrooms and plumbing.
A low rating doesn’t mean a ship is unsafe, and one bad inspection doesn’t mean it is always dirty. The CDC itself points out that each score reflects conditions on the day of the inspection.
The worst cruise ships in 2026: our lowest-rated list
The table sums up why each ship rates poorly and who might still be happy on board. More detail follows below.
| Ship | Line | Why it rates poorly | Who might still like it |
|---|---|---|---|
| Norwegian Dawn | Norwegian Cruise Line | Scored 84 in a CDC inspection on 29 March 2026, a fail. Built in 2002. NCL came last in Consumer Reports’ 2026 satisfaction survey. | Cruisers who want NCL’s Freestyle dining on a mid-sized ship at a lower fare than the newer Prima-class ships |
| Carnival Breeze | Carnival Cruise Line | Scored 86 in a 2026 CDC inspection, the lowest passing mark, months after scoring 100 | Families who want Carnival’s casual, fun atmosphere, waterslides and value pricing |
| Margaritaville at Sea Paradise | Margaritaville at Sea | Built in 1991 as Costa Classica. Reviewers often mention dated cabins and limited deck space and venues. | Budget travelers on short Bahamas getaways who care more about the party mood than the hardware |
| Margaritaville at Sea Islander | Margaritaville at Sea | Built in 2000 as Costa Atlantica. Reviews often mention wear and tear and an uneven food and service standard. | Jimmy Buffett fans and first-timers who want a cheap, relaxed few days at sea |
| Carnival Liberty | Carnival Cruise Line | A 2005 ship that keeps appearing in 2025 “worst ship” round-ups over maintenance problems and slow service | Short-break cruisers who want a familiar Carnival product at a low price |
| Carnival Radiance | Carnival Cruise Line | Built in 2000 as Carnival Victory and refitted in 2021. Reviewers say parts of it still feel older than the new name suggests. | Cruisers who like smaller, easier-to-navigate ships and Carnival’s newer venues |
| MSC Seaside | MSC Cruises | Scored 67 in a 2023 CDC inspection, one of the lowest results of recent years. Reviews of the ship are still mixed on crowding and service. | Families who value pools, a long outdoor promenade and MSC’s kids-sail-free deals |
| MSC World America | MSC Cruises | A new mega-ship launched in 2025 that showed up in 2025 “worst ship” round-ups, mostly over crowding and service consistency | Travelers who want the newest hardware, lots of venues, and the option of the MSC Yacht Club |
| Norwegian Escape | Norwegian Cruise Line | Large-ship complaints about busy public areas, queues and extra charges, plus NCL’s low survey result | Groups who want plenty of bars, shows and specialty restaurants and don’t mind paying extra |
| Carnival Firenze | Carnival Cruise Line | A former Costa ship (Costa Firenze) moved to Carnival in 2024. Some reviewers say the layout and venues feel less “Carnival” than they expected. | West Coast cruisers who like the Italian styling and a slightly calmer feel |
One note on Margaritaville at Sea Beachcomber, the former Costa Fortuna. It is having a major refit at Harland & Wolff in Belfast and starts sailing from PortMiami in January 2027, then moves to Galveston in late 2027. It is too early to judge the ship under its new brand, so it isn’t in the table. Reviews of its Costa years won’t tell you much about the refurbished version.
Lowest CDC sanitation scores: what the data shows
CDC inspections are the most objective public measure we have. Inspectors look at medical facilities, drinking water, pools and hot tubs, galleys and dining rooms, children’s areas, cabins and ventilation. Ships with a regular itinerary that includes foreign ports and that carry 13 or more passengers are covered when they call at US ports.
- Norwegian Dawn: 84 (March 2026). The only big-ship fail reported so far in 2026. Its previous inspection, in November 2025, scored 96. NCL sent the CDC a corrective-action report within days.
- Carnival Breeze, Kydon and National Geographic Sea Lion: 86 (2026). All three passed by a single point.
- Sun Princess, MSC Meraviglia and Amadea: 89 (2026). These were passes, but near the bottom of the year’s results.
- Symphony of the Seas: 86 (February 2025). The inspection listed 44 violations, including gastrointestinal illness cases in the kids’ club that weren’t reported or isolated properly.
For balance, 42 ships scored a perfect 100 in 2026, including Icon of the Seas, Carnival Celebration, Celebrity Apex, Disney Dream, Norwegian Viva and Cunard’s Queen Elizabeth. Most ships pass comfortably most of the time. One more caveat: the CDC cut civilian staff in the Vessel Sanitation Program in April 2025. Health officials said inspections would carry on with commissioned officers, but former program staff questioned whether the pace could be kept up. Check how recent a ship’s last inspection is, not just the score.
Why older ships and mega-ships top the “worst” lists
Look at any list of top 10 worst cruise ships and you’ll see two very different kinds of ship. They get criticized for different reasons.
Older and smaller ships
Ships from the 1990s and early 2000s, such as Margaritaville at Sea Paradise, Carnival Radiance and Norwegian Dawn, collect complaints about:
- Smaller cabins with fewer balconies and dated bathrooms
- Plumbing, air-conditioning and elevator problems
- Fewer dining venues and limited top-deck space
- Paintwork and carpets that look tired between refits
On the plus side, they are often cheaper, quieter and quicker to board.
Mega-ships with 5,000+ passengers
New ships such as MSC World America or Norwegian Escape rarely get called “old”. Their poor reviews usually come down to:
- Crowded pool decks and buffets on sea days
- Long waits for shows, lifts and tenders
- A sense that everything worthwhile costs extra
- Service that feels stretched when the ship is full
If you’re comparing MSC’s ships, our MSC ships ranked best to worst sets the fleet out class by class. That makes it easier to see whether a complaint is about one ship or the whole design.
Worst cruise lines vs worst ships
Many people searching for the worst cruise ships really want to know which line to avoid. In Consumer Reports’ 2026 survey (conducted in January 2026), Norwegian Cruise Line ranked last of 19 ocean lines for overall satisfaction. Royal Caribbean, Carnival and MSC also ranked low. Lindblad Expeditions came top, followed by Windstar and Viking.
Keep two things in mind. First, the lines at the bottom are also the biggest and cheapest per night, so they carry the widest range of expectations. Second, ship quality varies a lot within a line. A newer NCL ship can feel very different from Norwegian Dawn. Our Norwegian Cruise Line ships ranked guide shows how much the fleet varies.
What happened to the Costa and MSC ships on the old list?
Earlier versions of this article named ships such as Costa Fortuna, Costa Pacifica, Costa Smeralda, Costa Toscana, Costa Diadema, Costa Deliziosa, Costa Fascinosa, MSC Seascape, MSC Seashore, MSC Opera and MSC Orchestra. A few things have changed since then:
- Costa Fortuna left Costa in September 2026 and is being rebuilt as Margaritaville at Sea Beachcomber for US sailings from 2027.
- Carnival Firenze was Costa Firenze until 2024, when it moved to Carnival for “Carnival Fun Italian Style” cruises.
- Most Costa ships sail mainly in Europe and draw a largely European, multilingual crowd. That partly explains low scores from American reviewers expecting a US-style product. It doesn’t necessarily mean the ships are poor.
If you’re thinking about Costa, our guide to Costa cruise ships by size, age and class shows which ships are newest and which are oldest.
Why a “worst” ship might still be right for you
Ratings are an average of very different expectations. A ship that disappoints a frequent cruiser can delight someone else. A low-rated ship can be a smart pick if:
- Price comes first. Older ships are often hundreds of dollars cheaper on the same route.
- The itinerary matters more than the ship. On port-heavy cruises you may only use the ship to sleep and eat.
- You’re going for a short break. On a three- or four-night cruise, dated décor matters much less.
- You prefer a smaller ship. Fewer passengers can mean shorter lines and a more sociable feel.
- A refit is coming. Ships often improve a lot after drydock, as Margaritaville at Sea Paradise did when it got a new food hall in January 2026.
Cruise ships to avoid: who should skip which ship
Rather than a blanket list of cruise ships to avoid, it is more useful to match the ship to the traveller. Based on the evidence above:
- Avoid ships with a recent CDC fail and no newer pass if anyone in your group is vulnerable to stomach bugs. Wait for the re-inspection result before you book.
- Avoid the oldest ships (built before about 2002) if you want a large balcony cabin, modern bathrooms or lots of dining choice.
- Avoid 5,000+ guest mega-ships on peak sea days if you dislike queues and busy pool decks. Choose a port-heavy itinerary instead.
- Avoid very cheap short breaks on party-focused ships if you want a calm, adults-first atmosphere.
None of these ships is dangerous to sail on. They are simply the ones most likely to disappoint the wrong passenger.
How to check a ship yourself before you book
This is the step most worst-ship lists leave out. Do these five checks in about ten minutes:
- Search the CDC VSP inspection database for the ship’s last two or three scores and the inspection dates.
- Read only the most recent reviews. Filter Cruise Critic or Tripadvisor to the last 6 to 12 months. Reviews from before a refit can be misleading.
- Check the build and refit years. A 2000-built ship refitted in 2025 can feel fresher than a 2015 ship that hasn’t been touched.
- Look for patterns, not one-off horror stories. Five reviewers mentioning the same broken lifts or cold buffet food is a signal. One furious review usually isn’t.
- Compare price per night with a newer sister ship. If the saving is small, the newer ship is usually the better buy.
A great ship can still be let down by its itinerary, so check our guide to the most disappointing cruise ports before you book.
For the bigger picture, see our ranking of the worst cruise lines according to reviews, which looks at line-wide ratings rather than individual ships.
Even on a well-rated ship, cabin choice matters, so see our guide to the best cabins on Carnival Celebration before you book.
FAQs
What is the worst rated cruise ship?
No official ranking exists, but on CDC data Norwegian Dawn was the lowest-scoring large ship in 2026, with a failing 84 in March. Among older ships, Margaritaville at Sea Paradise, built in 1991, is one of the oldest and most often criticized vessels sailing from Florida.
Which cruise line is rated the worst?
In Consumer Reports’ 2026 satisfaction survey, Norwegian Cruise Line ranked last of 19 ocean cruise lines. Royal Caribbean, Carnival and MSC also scored low. Lindblad, Windstar and Viking came top.
What CDC score means a cruise ship failed?
A score of 85 or lower out of 100 is a fail in the CDC Vessel Sanitation Program. Ships that fail are usually re-inspected and must send the CDC a corrective-action plan.
Is it safe to sail on a ship that failed a CDC inspection?
Usually yes. A fail shows sanitation problems on the day of the inspection, and ships normally fix them quickly. Check whether the ship has passed a newer inspection before you sail.
Are older cruise ships worse than new ones?
Not always. Older ships get more complaints about cabins and maintenance, but they’re often cheaper and less crowded. New mega-ships score well on facilities but can feel busy and expensive once extras are added.
What is the worst cruise ship in the world?
There is no official worst cruise ship in the world. On objective data, the ships that rate lowest are the ones with failed or borderline CDC sanitation scores, such as Norwegian Dawn’s 84 in March 2026, and very old ships with dated cabins, such as Margaritaville at Sea Paradise, built in 1991. Ratings change after refits and re-inspections, so always check the latest results.
Which cruise ships should I avoid?
Avoid any ship that has failed its latest CDC inspection without a newer pass, and be cautious with the oldest ships in a fleet if cabin comfort matters to you. If you dislike crowds, avoid the largest mega-ships on sea-day-heavy itineraries. The right choice depends on what you want from the cruise.
