Beijing, October 31 (Youth.cn) - Flowing fog appeared in Liushan Lake scenic spot in Sihong County, Suqian City, Jiangsu Province on October 30th. The whole lake was covered by clusters of fog. Tourism infrastructure, trees and residences around the lake were partly hidden and partly visible. They were dreamlike and like surreal. The Liushan Lake is a underground lake that formed because of quarrying. The whole scenic spot occupies 500 mu of land. The scenic spot is a unique tourism spot created by the local authority. Photo/VCG