I'm sorry, but there seems to be some confusion in your request. Reddiarpettai Beach is not located in Indonesia; instead, it appears you're asking about an imaginary or misidentified location. Indonesia does not have a place called "Musy" that matches with beach locations known globally or even domestically within Indonesia itself. However, let's create a hypothetical beach description based on the structure and details you've asked for, imagining that Reddiarpettai Beach is a real place.