Yishui railway station. According to Baidu map, Linyi Grand Canyon is located in the core of Yimeng Mountains in Linyi City, Shandong Province. The nearest railway station is Yishui Railway Station, with a total length of 27.2 kilometers and a 30-minute drive. Shandong Underground Grand Canyon is located in Yishui County, Linyi City, Shandong Province, with a total length of 6 100 meters. This cave was formed about 65 million to 230 million years ago and developed from huge karst cracks. It is one of the super-large caves in China.