Ключевые слова: adventure, beautiful, blue, bottom, calm, clear, coral, cruise, dark, deep, depth, dive, fish, landscape, marine, military, mysterious, nature, naval, ocean, peaceful, periscope, propeller, rays, reef, sea, seascape, serene, shadow, sonar, submarine, submerged, sunlight, surface, torpedo, tranquil, travel, underwater, vessel, water,