A sculpture I remember

I think i sculpture i can most clearly remember is i went to the beach one afternoon and they were having this sand castle building competition and there was one of a mermaid and just the crazy detail and the way the sand just stayed together. I loved the detail you could add with just sand on sand and just the time the artist spent on it. It looked completely real and could be mistaken for a real thing or person except the grainy texture of the sand made it less real looking.