Ключевые слова: abstract, abyss, animal, aqualung, aquatic, background, beneath, blue, bottom, cave, cavern, clean, clear, color, coral, deep, dive, diver, ecosystem, environment, fish, horizontal, lake, life, light, marine, mediterranean, nature, ocean, ray, reef, school, scuba, scuba diving, sea, seascape, shark, snorkeling, submarine, sun, sunbeam, sunlight, sunshine, surface, travel, tropical, under, undersea, underwater, water,