Green sea turtle (Chelonia mydas), feeding on the sand near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize

chelonia mydas feeding sand sea grass caye caulker belize underwater marine life turtle ocean ecosystem wildlife nature habitat aquatic snorkeling biodiversity coral reef crustaceans floor tropical conservation environment turtles foraging seaweed diving caribbean flora fauna endangered species natural behavior scenic turquoise water coastal loss nutrition quality seagrass beds adventure observation