Ключевые слова: active, active seniors, activity, asphalt, carefree, city, cityscape, colorful, colourful, concept, culture, czech republic, day, europe, exercise, fast walking, fun, green, greenery, happiness, high up, hill, holidays, landmark, leisure, lifestyle, nature, outdoor, park, pedestrians, people, petrin, petrin hill, prague, rear view, street, summer, sunny day, tourism, tourist, tourists, travel, tree, vacations, walking,