The term 'Florida Island' is composed of two crossword solutions: MARCO (5 letters) and KEY (3 letters). Marco is an island located in the Gulf of Mexico off the coast of Southwest Florida. It is part of Collier County and is known for its white sand beaches and fishing. KEY is a term used to describe a group of islands located in the Florida Keys, which are a chain of islands stretching from the tip of the Florida peninsula to the Dry Tortugas. The islands are known for their tropical climate, coral reefs, and marine life.