Ключевые слова: active, activity, adventure, backpack, biologist, bird, charity, check, climate, discover, discovery, ecology, education, environment, exploration, explore, explorer, find, forest, group, guard, help, hike, hiking, journey, landscape, male, man, mountain, nature, outdoors, park, people, photographer, protect, saving, scout, support, survey, team, tree, trekking, volunteer, walk, watching, watchman, wild, wildlife, working,