Ключевые слова: activity, adult, adventure, backpack, backpacker, casual clothing, city, close up, detail, discovery, eco tourism, equipment, exploration, explorer, hanoi, hiking, horizontal, journey, leisure activity, male, man, one man only, one person, only men, part of, people, stand, tourism, tourist, travel, unrecognizable person, vacations, vietnam, walk, weekend activities, young adult,