Southern stingray (Hypanus americanus) over sand in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize

southern stingray hypanus americanus sand caye caulker belize marine life underwater ocean wildlife swimming aquatic nature reef fauna fish habitat sunlight clear water ecology conservation biodiversity sea floor animal behavior alley predator ecosystem tropical seagrass plants oceanography snorkeling diving natural clarity observation tranquil environment spot exploration coastal waters serene