Ключевые слова: 5a, air, autumn tour, bamboo forest, bamboo sea, canyon, charming, cliff, environmental protection, forest, fresh, garden, high mountain, hubei, landscape, mountain peak, mountain spring, mountaineering, natural landscape, nature, outdoor, oxygen bar, park, plant, ridge, rock, scenery, scenic area, stream, summer, sunny day, surroundings, the weather, three gorges bamboo sea, tourism, travel, tunxi, vacation, valley, vegetation, water resources, waterfall, yichang,