Aerial photo taken on Sept. 2, 2020 shows tourists sitting in a sightseeing train enjoying the scenery of pink grass (muhlenbergia capillaris) at Shenquangu scenic area in Changshun County of southwest China's Guizhou Province. (Xinhua/Tao Liang)

Tourists pose for photos in a field of pink grass (muhlenbergia capillaris) at Shenquangu scenic area in Changshun County of southwest China's Guizhou Province, Sept. 2, 2020. (Xinhua/Tao Liang)

Tourists have fun in a field of pink grass (muhlenbergia capillaris) at Shenquangu scenic area in Changshun County of southwest China's Guizhou Province, Sept. 2, 2020. (Xinhua/Tao Liang)

Tourists have fun in a field of pink grass (muhlenbergia capillaris) at Shenquangu scenic area in Changshun County of southwest China's Guizhou Province, Sept. 2, 2020. (Xinhua/Tao Liang)

Tourists have fun in a field of pink grass (muhlenbergia capillaris) at Shenquangu scenic area in Changshun County of southwest China's Guizhou Province, Sept. 2, 2020. (Xinhua/Tao Liang)

Aerial photo taken on Sept. 2, 2020 shows tourists having fun in a field of pink grass (muhlenbergia capillaris) at Shenquangu scenic area in Changshun County of southwest China's Guizhou Province. (Xinhua/Tao Liang)

Tourists have fun in a field of pink grass (muhlenbergia capillaris) at Shenquangu scenic area in Changshun County of southwest China's Guizhou Province, Sept. 2, 2020. (Xinhua/Tao Liang)