Covering a planned area of 32 square kilometers, this spectacular cave kingdom serves as the core scenic spot of the underground wonders in the Yimeng Mountains. It integrates leisure, recreation, entertainment, vacation and cave drifting into one resort. Stretching 6,100 meters in total, the cave ranks as the longest cave north of the Yangtze River and one of China’s extra-large famous karst caves.
Extending along a bearing of 290° to 320°, the cavern evolved from a huge northwest-southeast karst fissure and took shape between 65 million and 230 million years ago. Its landscapes feature four distinctive highlights:
First, it boasts magnificent momentum. The underground canyon plunges nearly 100 meters deep with sheer vertical cliffs. Its width varies from over 100 meters at the widest points to barely enough space for one person at narrow sections, resembling a miniature version of the Three Gorges underground. More than 100 scenic spots scatter inside, including one underground river, nine springs, nine palatial rock formations, twelve waterfalls and twelve sub-canyons.
Second, the long, winding underground river boasts abundant water flowing all year round, paired with spectacular subterranean waterfalls — a rare sight among karst caves in northern China.
Third, the 1,000-meter drifting ride designed to leverage the river’s current has been certified by the Shanghai Great World Guinness Headquarters as “China’s Longest Cave Drifting Project”.
Fourth, the cave maintains a constant temperature of 17°C all year round, warm in winter and cool in summer, making it suitable for visits regardless of seasons or weather conditions.