Ключевые слова: aquatic, aquatic ecosystem, blue, calm, clear water, conservation, coral reef, crystal clear water, deep sea, diving, ecofriendly, habitat, marine animal, marine biology, marine life, natural light, nature, ocean, ocean floor, oceanography, peaceful, rays of light, sea creature, sea turtle, sea world, seabed, serene, snorkeling, sunlight, tranquil, underwater, underwater photography, underwater scene, wild animal, wildlife,