Ключевые слова: adventure, blue, branch, bright, brown, cave, cave entrance, cross, day, environment, exploration, fallen, foliage, forest, geology, gorge, grass, green, grove, gully, hiking, hill, landmark, landscape, moss, mountain, nature, old, outdoor, pathway, plant, ravine, russia, scenery, steep, stream, summer, tourism, travel, tree, trunk, valley, vegetation, wet, wild, wilderness, wood, woodland, yuriev cave,