Ключевые слова: active leisure, autumn september, backpack, boy girl, camping activity, casual clothes, child kid, childhood discovery, children, classmate, curiosity, ecology lesson, education, examing, excited, explore, explorer, exploring looking, girl, green grass, happy friends, hiking, holding hand, learning, magnifier, magnifying glass, nature forest, outdoor, outside, research, school kids, schoolchild pupil, schoolchildren, schoolkid, scout, smile happiness, spring sunset, study schoolgirl, summer, sunlight, sunny day, through, tree bark, trip adventure, walking together, warm hat, watching environment, weather wood, woodland,