Cruise ship rubber ducks, explained Cruisers often bring rubber ducks on cruises in an effort to have a bit of fun by hiding them throughout the ship. The ducks usually have information cards attached to them bearing the names of the people who hid them and where those passengers are from.

The "duck thing" on cruises is a lighthearted, community-driven tradition known as "Cruising Ducks." It involves passengers hiding small rubber ducks throughout the public areas of a cruise ship for fellow travelers to find. This trend, which gained massive popularity around 2018-2019 and continues to thrive in 2026, encourages finders to either keep the duck as a souvenir or "re-hide" it for someone else. Most ducks come with a small waterproof tag that includes the hider's name, the ship's name, and the cruise dates, often asking the finder to post a photo in dedicated Facebook groups like "Cruising Ducks." It’s important to follow unofficial etiquette: never hide ducks in shops, pools, or areas where they could cause a safety hazard. This simple game has created a global subculture of "duck hunters" on lines like Carnival and Royal Caribbean, adding an extra layer of scavenger-hunt fun to the vacation experience.