A Cruise Duck (also called a "Cruising Duck") is a small rubber duck usually like a classic
bath toy that passengers on cruise ships hide around the ship as part of a popular,
wholesome scavenger hunt style tradition.

The Idea Is Simple And Fun:
People bring rubber ducks (often decorated, themed, or with little tags attached) onboard.
They discreetly hide them in public areas (like behind plants, on railings, in lounges, near elevators,
etc. but not in pools, hot tubs, shops, near emergency equipment, or crew-only spots).
Other passengers discover ("find") them during the cruise, which usually sparks smiles and excitement.
The finder typically takes a photo with the duck, often posts it online (especially in large Facebook
groups like "Cruising Ducks - Original," which has hundreds of thousands of members), and then
decide whether to:
Keep it as a cute souvenir, or
Re-hide it for someone else to find later (keeping the chain going).

On our last cruise, My Wife and I saw small kids walking around looking for ducks
so we decided to bring some Cruise Ducks on our next cruise to hide.
One night I was trying to think of a new project to play around with and
thought it would be cool if there was a way to track when ducks were found.
So I made a website for that: https://keyster.net/ducks
Each duck will have a tag around it's neck similar to the following:

When someone follows the QR code with their phone it will mark the duck
as "Found" on the STATUS page linked above.
On that page there is also an option to "Re-Hide" the duck if you like.

Please note: I take no credit for the Cruise Duck Game itself, I only made
this VERY SIMPLE website for tracking ducks because I thought it might
be fun for the kids to know when ducks were hidding and found.