Cruise age requirements depend on the cruise line and where the ship sails from. Babies usually need to be at least 6 months old (12 months on longer or ocean-crossing voyages). You normally need to be 21 to book and sail without an older adult on North American departures, or 18 from most UK and European ports. The drinking age at sea is 21 on US-based sailings and usually 18 on British lines and in Europe.
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After that, a string of other age limits shapes your holiday: kids’ club bands, potty-training rules, teen clubs, casino and spa ages, adults-only ships and even a minimum age of 50 on Saga. This guide works through every milestone, then puts the main lines side by side in one table so you can check the rules before you book.
Babies: the minimum age to cruise
The most common minimum age to cruise is 6 months on the first day of the voyage. Royal Caribbean, Celebrity, Norwegian, Carnival, Disney, Princess, P&O Cruises, Cunard and Fred. Olsen all start from 6 months on most itineraries. That rises to 12 months for transatlantic and transpacific crossings, Hawaii, many South American and South Pacific voyages, and, for several lines, any cruise with three or more consecutive days at sea. Princess applies 6 months only to Alaska, Canada/New England, Caribbean, Europe, Mexico and Panama Canal trips, and 12 months to everything else.
The rule is strictly enforced. An infant who is a day too young can be refused boarding with no refund, so check the date carefully against your child’s birthday. For line-by-line detail on cots, baby food and nurseries, see our guide to taking babies on a cruise and infant age limits.
Nursery ages
Supervised nurseries are less common than kids’ clubs and often carry a fee. Royal Caribbean’s Royal Babies and Tots Nursery takes 6 to 36 months on most of its larger ships, for an hourly charge. Disney’s It’s a Small World Nursery covers children under 3. P&O Cruises runs a free Night Nursery for children from 6 months to under 4, while under-2s can use the daytime nursery area with a parent. Carnival’s Night Owls group babysitting takes children from 6 months to 11 years for a fee.
Cruise age limits for kids’ clubs and potty training
Most kids’ clubs start at 3, but a few take younger children, and the nappy rules vary more than many parents expect.
- Carnival Camp Ocean: Penguins 2 to 5, Stingrays 6 to 8, Sharks 9 to 11. Children do not need to be potty trained, but you must hand over nappies at each drop-off.
- Royal Caribbean Adventure Ocean: Aquanauts 3 to 5, Explorers 6 to 8, Voyagers 9 to 11. Children must be fully potty trained. Nappies and pull-ups are not allowed.
- Disney: Oceaneer Club and Lab for ages 3 to 10.
- Princess: The Treehouse 3 to 7 and The Lodge 8 to 12 (Sun and Star Princess use Firefly Park, which covers 6 months to 7 years).
- P&O Cruises: The Reef for Splashers 2 to 4, Surfers 5 to 8 and Scubas 9 to 12.
One rule applies almost everywhere: babies in nappies cannot use the main pools. Swim nappies are usually only allowed in dedicated splash areas.
Teen club ages
Teen programmes generally run from 12 or 13 to 17. Royal Caribbean’s Teen Club covers 12 to 17, split into 12 to 14 and 15 to 17. Carnival has Circle C for 12 to 14 and Club O2 for 15 to 17. Disney uses Edge for 11 to 14 and Vibe for 14 to 17. P&O runs Scene or H2O for 13 to 17, and Princess The Beach House for 13 to 17. Teens can usually sign themselves in and out, which younger children cannot.
Minimum age to book or go on a cruise alone
This is where cruise age requirements vary most. The age to go on a cruise alone usually depends on the departure port, not your nationality.
- Royal Caribbean and Celebrity: 21 from North America; 18 from Europe, South America, Asia, Australia and New Zealand. Underage married couples and active-duty US or Canadian military can be exempt with proof.
- Norwegian: on cruises that call at a US, Canadian or Chinese port, under-21s must share (or connect to) a cabin with someone 21+. On other itineraries the line uses 18.
- Carnival: under-21s must travel with a relative or guardian aged 25 or over, linked on the same booking. For bookings made from 1 October 2026, children 14 and under must share or connect to that adult’s cabin, and 15 to 20-year-olds must be no more than three cabins away. Married couples and qualifying military aged 18 to 20 are exempt.
- Princess: under-21s must share a cabin with someone 21+, with some leeway for family bookings across several cabins.
- Disney and Virgin Voyages: 18. Virgin is adults-only, so 18 is also its minimum age to sail at all.
- UK lines (P&O Cruises, Cunard, Marella, Fred. Olsen): generally 18 on UK and European sailings. Cunard lets under-16s share with anyone aged 16+ in the same cabin.
If you are 18 to 20 and want to sail with friends, our guide to the best cruises for 18-year-olds without parents covers which lines and itineraries work.
Documents for minors
Children travelling with only one parent, or with grandparents or another adult, may need a signed consent letter from the absent parent or parents. Norwegian, for example, asks for a Parent/Guardian Release Form for under-18s travelling with a non-parent and may refuse boarding without it. Carry it even if the line does not ask in advance.
Drinking age at sea
There is no single drinking age on cruise ships. Each line sets its own policy by departure region.
- US-based sailings (Caribbean, Alaska, Mexico, Hawaii): 21 on Royal Caribbean, Carnival, Princess, Celebrity, Disney and MSC.
- Europe, South America, Asia, Australia and New Zealand: 18 on Royal Caribbean and MSC. On Disney, guests aged 12 to 20 can drink with a parent present and a signed consent form on certain European and Australian round trips.
- Norwegian: 21 in Alaska and Hawaii. Elsewhere, 18 to 20-year-olds may drink beer and wine in international waters if a parent on board gives written consent.
- British lines: P&O Cruises, Marella and Fred. Olsen generally serve from 18. Cunard uses 18 on most sailings, but check its North American departures.
Private islands follow their own rules. Royal Caribbean applies 21 at Perfect Day at CocoCay and Labadee. Turning legal age mid-cruise? Royal Caribbean and MSC will update your record at Guest Services if you show ID.
Casino, spa, gym and adults-only area ages
- Casino: 18 is standard on Royal Caribbean, Norwegian, Princess, Carnival and most UK lines. Royal Caribbean raises it to 21 on Alaska sailings.
- Spa: treatments are typically 18+. Princess and others offer teen treatments for 13 to 17-year-olds with parental consent. Norwegian’s Thermal Suite is 18+.
- Gym: Norwegian bars under-16s from the fitness centre. Other lines let younger teens in with an adult or at set times.
- Adults-only areas: Carnival’s Serenity is 21+. Princess’s Sanctuary and Disney’s Quiet Cove pool, Palo and Remy restaurants are 18+. Royal Caribbean’s Solarium is 16+ on most ships.
Adults-only cruise lines and ships
If you’d rather not share the ship with children, several options set a fixed minimum age for every guest:
- Virgin Voyages: 18+ fleetwide.
- Viking ocean ships: 18+.
- Oceania: new bookings made from 7 January 2026 are for guests aged 18 and over only.
- P&O Cruises Arcadia and Aurora: adults-only for most of the year, but a limited number of family sailings, mostly around Christmas and school holidays, run from December 2026 to September 2027. Check the specific date.
- Marella Explorer 2: adults-only, joined by Marella Discovery for summer 2026.
- Ambassador: every no-fly itinerary in the 2027-28 season is child-free.
Over-50s and older travellers: is there an upper age limit?
Saga is the one major line with a minimum age at the top end. Saga cruises are for anyone aged 50 or over, and a travelling companion can be 40 or over. Nobody else sets a lower limit for older guests, and no mainstream line has a maximum age. Instead, older travellers should expect to declare medical conditions or mobility needs when booking. Lines can ask for evidence of fitness to travel or require a companion for guests who need help. Travel insurance, not the cruise line, is usually where age makes the biggest difference to cost. If you’re planning a trip in later life, see our pick of the best cruises for over-50s.
Pregnancy limit
It isn’t an age rule, but it catches people out. Most lines, including Princess, Royal Caribbean and Disney, refuse passengers who will be 24 weeks pregnant or more at any point during the cruise.
Cruise age requirements by line: comparison table
| Cruise line | Minimum infant age | Sail without parent/older adult | Drinking age | Kids’ club starts |
|---|---|---|---|---|
| Carnival | 6 months (12 on transatlantic, Hawaii, South America) | 21, or under-21s with a 25+ relative | 21 (US sailings) | 2 (nappies OK) |
| Royal Caribbean | 6 months (12 on long/ocean voyages) | 21 North America / 18 elsewhere | 21 North America / 18 elsewhere | 3 (potty trained) |
| Norwegian | 6 months (12 with 3+ sea days) | 21 if US/Canada/China port / 18 otherwise | 21 Alaska/Hawaii; 18-20 with parental consent elsewhere | 3 |
| Princess | 6 months (12 on most long voyages) | Under-21s with a 21+ cabin mate | 21 (US-based ships) | 3 (6 months on Sun/Star Princess) |
| Disney | 6 months (12 on some routes) | 18 | 21 (12-20 with consent on some Europe/Australia trips) | 3 |
| MSC | Under 1 allowed on shorter cruises; stricter on 11+ nights | 18 (21 on US port cruises) | 21 North America / 18 Europe | Varies by club |
| P&O Cruises | 6 months (12 on some long or remote trips) | 18 | 18 | 2 |
| Cunard | 6 months (12 on world voyages and transatlantics) | Under-16s with a 16+ cabin mate | 18 on most sailings | Varies by ship |
| Virgin Voyages | Adults only | 18 | 21 US / 18 Europe | None |
| Saga | Adults only | 50 (companion 40+) | 18 | None |
Policies change, and Carnival tightened its rules for young adults twice between 2025 and 2026, so confirm the current terms on the line’s website before you pay a deposit.
Tips for checking cruise age requirements
- Use age on embarkation day. Most lines judge every limit by your age on day one. A birthday during the cruise usually won’t count unless Guest Services updates your record.
- Check the itinerary, not just the line. The same ship can switch between 21 and 18 rules when it moves from the Caribbean to Europe.
- Book cabins together. If teens or young adults will be in a separate cabin, book connecting or neighbouring cabins on the same reservation to satisfy the rules.
FAQs
Do you have to be 18 or 21 to go on a cruise by yourself?
It depends on the line and the departure port. Most US lines require 21 on North American sailings, while Royal Caribbean, Celebrity and most UK lines accept 18 on European departures. Disney and Virgin Voyages use 18.
Can I go on a Carnival cruise at 18?
Yes, but only alongside a relative or guardian aged 25 or over on the same booking, unless you are legally married or qualifying military. From 1 October 2026 bookings, 18 to 20-year-olds must also be within three cabins of that adult.
What is the minimum age to cruise for a baby?
Usually 6 months on embarkation day. That rises to 12 months for transatlantic, Hawaii, South Pacific and other voyages with three or more consecutive sea days.
Is there an upper age limit for cruises?
No major cruise line has a maximum age. Saga has a minimum age of 50 (companions 40+). Every line may ask older passengers to declare medical conditions and prove they are fit to travel.
What is the drinking age on a cruise ship?
Usually 21 on sailings from the US and 18 on British lines and on most European, Australian and South American sailings. Norwegian and Disney allow some 18 to 20-year-olds to drink with parental consent on certain itineraries.
