From Soldier Key and Black Point in Biscayne Bay. This Upper Florida Keys chart covers the entire area south to Marathon with both detailed Intracoastal Waterway coverage and offshore coverage showing complete reef details. This navigation chart also includes complete coverage of Florida Bay, and the Flamingo area. The marine map has expanded detail insets for North Key Largo, Windley Key (Holiday Isles) Area, Tavenier, Indian Key Area, Marathon and Flamingo.