Marine slopes. Marine caves. Red coral (polypes). The red color of their exoskeleton is due to iron salts. Sandy ocean floor: anemons, red finger coral (bottom). Underwater aquatic plants area: common stingray. Ocean environment: bonnethead shark, guitarfish. Ocean environment: bonnethead shark. Ocean environment: guitarfish. Ocean environment: guitarfish. Shellfish farming. Shellfish farming. Estuaries. Estuaries: European sturgeon. Estuaries: European sturgeon. Continental plateau, up to 200 deep. Ocean basins up to 3000m deep continue beyond plateaus, separated from plateaus by a slope. Yellow tree coral. Continental plateau. Jewel anemone. Continental plateau. Jewel anemone. Continental plateau. Green see urchin. Hotel Champlain Labels