Wulong is about 130 kilometers from downtown Chongqing. The 2,900-square-kilometer district boasts karsts, caves, forests, springs and primitive wilderness.UNESCO named Wulong's karsts as a World Natural Heritage in 2007, along with the Shilin karsts in Southwest China’s Yunnan province and the Libo karsts in Guizhou province. Sports options here include mountain climbing and hiking. [Photo/VCG]