Ключевые слова: adventure, arabian, atlantic, background, beach, beautiful, blue, coast, earth, environment, expedition, fishing, flat, global warming, goa, gps, gps tracking, high seas, horizon, horizontal, hydrosphere, indian, isolated, landscape, lost, marine, merchant navy, nautical mile, navigation, ocean, oceanography, pacific, rising, sea, sea level, sea sickness, seascape, season, shipping, summer, surface tension, territorial waters, travel, trip, view, voyage, water, water sports, water surface, weather,