Ключевые слова: 20s, aqua lung, bubble, caucasian, close up, diving, equipment, gesturing, hobbies, holiday, learning, leisure activity, looking at camera, male, man, oxygen cylinder, practicing, recreational pursuit, scuba diving, scuba mask, sign, signal, snorkel, snorkeling, summer, summertime, swimming, swimming pool, training, underwater, vacation, wet suit, young adult,