Shell Sea is a term that refers to the ocean environment and the creatures that inhabit it. The term is derived from the word 'CONCH, ' which is a type of mollusk with a large, spiral-shaped shell. CONCH shells are often used as decorations, jewelry, and musical instruments. Shell Sea is also used to refer to the vast array of sea life that live in the ocean, including fish, crustaceans, and other marine animals.