Ключевые слова: activity, adventure, air, aqua, aqualung, background, barometer, beaches, black, breath, breathe, clasp, dive, diving, equipment, gas, gear, glass, glasses, hobby, leisure, lifestyle, measure, measurement, nature, object, outdoors, oxygen, plastic, pressure, regulator, relax, rest, rock, rubber, sand, scuba, sea, set, snorkeling, sport, summer, swimming, travel, undersea, underwater, water, waterproof, weather,