The largest and deepest natural funnel on Earth is called Xiaotsai Tiankan.
It is located in the center of China, Penzhi. This amazing funnel is completely natural and measures 662 meters deep and 537 meters wide. But the most impressive thing is the diversity of life it contains.
Geologists are surprised by the influence of water on Xiaotsai Tiankan. A funnel was formed at the top of the cave, where an 8.5 kilometer long underground river falls into a beautiful waterfall. Thanks to its huge size it is the deepest karst funnel in the world.
It is home to about 1,300 species of plants and wild animals. Among the most interesting inhabitants of the underground forest is the misty panther, known to the locals since ancient times.
