Which event most likely would occur in a story set at the beach?

In a story set at the beach, an event that might occur is a family discovering a mysterious message in a bottle washed ashore. This discovery could lead them on an adventure as they try to uncover the story behind the message, involving local legends or a long-lost treasure. The beach setting would provide a vibrant backdrop, with sun, sand, and waves enhancing the sense of discovery and excitement. Ultimately, this event could foster connections among the characters as they work together to solve the mystery.