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Every cruise line says it is great for kids. The brochures all show the same laughing five-year-old. What the brochures never show is the table below: the actual minimum ages, potty-training rules, and fees that decide whether your kid can walk through the kids club door — and whether you get a single adult hour all week.
This is the reference table we wish existed when comparing lines, verified against each line’s published policies as of July 2026. Policies shift and vary by ship, so confirm for your sailing before booking; when a line changes something, we update this page.
The Master Table
| Line | Free club age | Potty trained required? | Under-3 drop-off nursery | Nursery cost | Evening options |
|---|---|---|---|---|---|
| Disney | 3–12 (Oceaneer Club) | Yes | Yes — every ship, 6 mo+ | Hourly fee | Club runs late; nursery evenings |
| Royal Caribbean | 3–11 (Adventure Ocean) | Yes | Most ships, 6–36 mo | ~$6–12/hr | Late-night group care (fee) |
| Carnival | 2–11 (Camp Ocean) | No, from age 2 | No | — | Night Owls group sitting (fee) |
| Norwegian | 3–12 (Splash Academy) | Yes | One ship only (Escape) | Hourly fee | Late-night fun zone (fee) |
| MSC | 3–11 (Mini/Juniors Club) | Yes | Select ships (Baby Care), limited blocks | Session fee | Varies by ship |
| Princess | 3–12 (Camp Discovery) | Yes | No — parent must stay | — | None for under-3s |
Three things jump out of that table, and they decide most bookings.
Takeaway 1: Under 3, You Have Two Real Options (Plus a Wildcard)
If your child is under 3 and you want even one hour of adult time, only Disney guarantees it on every ship. Royal Caribbean delivers it on most ships — verify yours before booking, because a handful of older vessels have no nursery. MSC’s Baby Care is the wildcard: real drop-off care at a bargain price, but in limited session blocks on select ships only.
Norwegian and Princess require a parent present for all under-3 activities (with NCL’s single-ship exception), and Carnival has no daytime infant care at all. On those lines, “family cruise” means you are the staff. The full context on each line is in our dedicated guides: Royal Caribbean, Carnival, MSC, Norwegian, and Princess.
Takeaway 2: Carnival’s Age-2 Club Is the Sleeper Fact of the Industry
One line lets a two-year-old into the included kids club, and it is the one nobody associates with “toddler infrastructure.” Camp Ocean’s Penguins group takes kids from their second birthday, no potty training required, at no charge. For families squarely in the 2-to-3 window, that single policy can outweigh everything else on the comparison sheet — with the enormous caveat that Carnival bans swim-diapered kids from all water facilities, so this only works for potty-trained-early or water-indifferent kids.
Takeaway 3: Every “Yes” Has a Registration Trick
Whichever line you pick, the same three moves apply, and experienced parents run them like a checklist:
Register on embarkation day, in the first two hours. Nursery time slots on Disney and Royal Caribbean are capacity-limited and go fast, especially sea-day mornings and formal-night evenings. This is the single most repeated regret in family cruise forums.
Attend the open house. Every line runs a kids club open house on day one where children can explore with you present. Kids who have seen the room walk in willingly on day two; kids who have not, cling. This is close to a law of nature.
Book the evening slots you want immediately, even if you are not sure you will use them. Cancelling is easy everywhere; getting a Saturday-night nursery slot on Wednesday is not.
What This Costs You Per Adult Hour
A rough planning figure that surprises people: on Disney or Royal Caribbean, a couple using the nursery for two hours every evening of a 7-night cruise spends roughly $85–170 total — the cheapest babysitting most parents of toddlers have seen in years, on a ship, with trained staff. It is one of the quietly best deals in family travel, and budgeting for it beats discovering it. Run your whole trip cost, nursery hours included, through the cruise cost calculator.
The Bottom Line
Read the table twice: once for the age your kid is now, and once for the age they will be on your next cruise. The lines that fail you this year (Norwegian, Princess) become excellent options one birthday later, and the premium you pay Disney or Royal Caribbean right now is largely a fee for being the only ones who built for the under-3 years. That premium expires on its own — our full line-by-line comparison maps exactly when.
