Cruise Symbols & Dress Codes (2025/2026 Update: Pineapples, Flamingos & Hidden Adult Signal
Updated December 2025
From upside-down pineapples to flamingos and black rings, discover the hidden adult signals seen on cruises — and what they really mean in 2025.
Cruise lines are continuing to expand their adults-only entertainment and theme parties, so dress code expectations can vary by ship and brand. Here’s the latest guidance for 2025 based on cruise line policies and recent sailings.
Quick Answers
Can you dress up for adult-themed events on cruises?
Yes - cruises encourage dressing up for late-night theme parties, as long as outfits still follow standard safety rules.Are outfits ever too revealing?
Cruise lines allow fun, flirty and sexy outfits, but swimwear, thongs and anything overly explicit are usually restricted to pool areas.Do cruise lines allow fancy dress props or accessories?
Yes - but avoid sharp objects, offensive props and anything resembling real weapons.Where can themed outfits be worn onboard?
Generally in bars, lounges and private venues after dark - not in dining rooms during main evening service (with the exception of perhaps Virgin Voyages).
Cracking the Cruise Dress Codes that Might Surprise You
What does an upside-down pineapple mean, and other unspoken messages
As cruises become more adult-only (e.g., Virgin Voyages), people are asking more about subtle signals vs. traditional dress codes.
This guide responds to cultural curiosity (not just gossip) and asks, “Why pineapples have gone from kitchen wallpaper to coded signals at sea.”
When it comes to cruising, not all dress codes are about formal nights and gala dinners. For example, Virgin Voyages, the adult only cruise line, throw a mean pool party, with Scarlet Night another opportunity to dress flamboyantly (find out more in my Virgin Voyages Valiant Lady Entertainment Guide).
However, beyond the official guidelines lies a playful subculture of hidden symbols and coded clothing choices — ways some travellers discreetly signal an interest in swinging or other adult lifestyles.
From the infamous upside-down pineapple to flamingo prints and even the subtle placement of a black ring, these symbols have sparked countless stories on ships and in resorts. But what do they really mean, and how seriously should you take them?
This guide decodes the most rumoured interpretations and talked-about signals at sea, explains how to spot them, and offers practical tips to avoid accidentally sending the wrong message on your next cruise.
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As a rookie cruiser some twenty years ago, I was concerned, as most new cruisers are, that I needed to be appropriately dressed for my holiday at sea. I purchased beautiful ballgowns for me, and a tuxedo for John to wear on gala nights (dress codes were really ‘formal’ back then), and made sure we packed suitable smart clothes for other evenings plus some lovely tropically-inspired resort wear.
What I wasn’t aware of in my naïveté was the unspoken ‘hidden’ adult-themed codes and symbols that are prevalent on cruise ships. If only I knew then, what I have learned since, I might have avoided those sideway glances and “nudge, nudge. wink, wink” moments that in retrospect I’m sure we must have invoked from time to time. With my pineapple print sun dresses and John’s prancing flamingo swim shorts, I don’t know whether to be grateful or offended that we weren’t actually propositioned
I feel, therefore, that it is my duty to prepare you, dear readers (well those of you not in the know), so that you don’t make an unintentional cruise-wear faux pas.
Here is an outline of cruise-insider dress ‘codes’, with code being the operative word. Beware of the tropical pineapple and flamingo, they may not be your friend (or they may find you new friends, depending on your perspective). In an adult-only context on cruise ships, these symbols, particularly on clothing, can take on more playful and suggestive meanings.
Cruise Lifestyle Symbols: Pineapples, Flamingos & The Secret Codes Behind Them
Adult Cruise Symbols and their meanings
The Humble Pineapple 🍍
Pineapple-related clothing or accessories, especially upside-down pineapples, are popular symbols used by couples or individuals to subtly indicate that they are secretly interested and/or actively looking to participate in ‘swinging’ or partner-swapping. Yes, you read that correctly!
Some people are more blatant and hang the symbols on their cabin door meaning “swingers welcome”. Oh, and this isn’t just limited to party cruises - on a recent Cunard cruise on Queen Mary 2, the adjacent cabin to ours proudly displayed a double pineapple door mat outside their cabin door stating “Everyone Welcome”. We didn’t take up the invitation, although we did keep an interested eye open, but I don’t think they had any takers on that particular voyage.
Pretty Flamingos 🦩
Whilst being a popular feature on tropical clothing, pool inflatables and even towel clamps, Flamingos can also sometimes symbolise a desire for casual relationships or flirtatious interactions among passengers.
In the USA, they have long been used as a “welcome to our home” symbol when planted on the front lawn. Well now, that welcome has got a whole lot warmer and when worn/displayed onboard, can be seen as sending a discrete message that the owners perhaps follow an alternative lifestyle.
That said flamingos are less well known as a secret code than the ubiquitous upside-down pineapple - so if your intention is to, well grab some attention from like minded swingers, then you might want to stick with the fruit.
Black Ring (Right Hand) O
A black ring can symbolise various things depending on context and personal interpretation - common meanings include power, strength, resilience, and a modern, edgy aesthetic. It can also be a fashion statement or a symbol of a unique relationship, especially in the context of wedding bands.
However, it can also be a discreet swinger signal. Tip: Placement matters — right hand = signal
Another lifestyle symbol with similar meaning is the wearing of TOE RING on the big toe of the right foot.
Of course cruise ships are not all the centre of debauchery (well, ok they can be, especially if you are on that all inclusive drinks package), but they are seemingly a good place to meet like-minded people.
There are even so called “lifestyle cruises” specifically for swingers, (educate yourselves with my Guide to Adult Lifestle Cruising), most notably in the USA, but if you are on a regular cruise and want to find passengers of a similar persuasion, then look for the symbols on cabin door, or clothing and use this as a conversation-starter. What’s the worse that could happen, right?
What You Can (and Can’t) Wear in 2025/2026
Cruise lines are becoming more relaxed about self-expression, especially at evening events, but they still want to keep things classy and comfortable for everyone. Typical guidelines include:
✔ Corsets, leather, clubwear and lingerie-inspired outfits are fine at adults-only venues
✔ Bring comfortable shoes - there’s lots of walking onboard
✔ Masks must allow you to see clearly and move around safely
✔ Glow sticks, LED accessories and festival-style outfits are encouraged
⚠️ Avoid outfits that could be considered offensive or discriminatory
⚠️ No spikes or metal accessories that could injure someone
⚠️ Swimwear is usually restricted to the pool deck only
Check out my Packing Guide for Lifestyle Cruises
FAQs: Adult-Themed Dress Codes on Cruises
Do cruises have adult-only theme nights?
Yes - some ships host adults-only parties, silent discos, or after-dark entertainment.
Do themed outfits need to follow dining dress codes?
Only if you’re going through a main dining room - otherwise cruise lines are relaxed about what you wear in the evenings.
Can I wear costumes with logos or jokes?
As long as they’re not offensive - anything discriminatory, political or highly explicit might be refused.
What happens if I wear something inappropriate?
Crew may politely ask you to change or add a cover-up. It’s rare — but it can happen!