My wish to be up there

This is a story about a mermaid princess. Her one and only wish was to go up on shore, but we all know that it's the forbidden mermaid rule. She would wait until her parents left to tend to the problems of their kingdom, and she would go up to the surface. She would watch the people on the pier, oh how she loved to do that. One day she sees this boy sitting at the end of the dock by himself...