Maybe it was just your imagination...

While on a school trip, you went with your classmates to the cabins assigned to everyone. But you wanted to get some air for the long trip... You walked a while on the beach, at night.

When suddenly you saw something splash in the water. You got a little closer, to see better. But underwater, there was something you didn't expect.

You saw a mermaid's tail... or rather, a merman!... But whose character quickly sank back under the water...

¿What?