Tourists go sightseeing on a bamboo raft at Daxiaojing scenic spot in Luodian County, southwest China's Guizhou Province, on Sept. 12, 2018. (Photo: Xinhua/Liu Xu)

Aerial photo taken on Sept. 12, 2018 shows a bamboo raft carrying tourists at Daxiaojing scenic spot in Luodian County, southwest China's Guizhou Province. (Photo: Xinhua/Ou Dongqu)

Aerial photo taken on Sept. 12, 2018 shows a bamboo raft carrying tourists at Daxiaojing scenic spot in Luodian County, southwest China's Guizhou Province. (Photo: Xinhua/Ou Dongqu)

Aerial photo taken on Sept. 12, 2018 shows the scenery of Daxiaojing scenic spot in Luodian County, southwest China's Guizhou Province. (Photo: Xinhua/Ou Dongqu)

Aerial photo taken on Sept. 12, 2018 shows a bamboo raft carrying tourists at Daxiaojing scenic spot in Luodian County, southwest China's Guizhou Province. (Photo: Xinhua/Ou Dongqu)

A man rows a bamboo raft at Daxiaojing scenic spot in Luodian County, southwest China's Guizhou Province, on Sept. 12, 2018. (Photo: Xinhua/Liu Xu)

A man rows a bamboo raft at Daxiaojing scenic spot in Luodian County, southwest China's Guizhou Province, on Sept. 12, 2018. (Photo: Xinhua/Liu Xu)

Photo taken on Sept. 12, 2018 shows the scenery of Daxiaojing scenic spot in Luodian County, southwest China's Guizhou Province. (Photo: Xinhua/Liu Xu)

Photo taken on Sept. 12, 2018 shows the scenery of Daxiaojing scenic spot in Luodian County, southwest China's Guizhou Province. (Photo: Xinhua/Liu Xu)