China’s largest ice cave is located in Luya Mountain in Ningwu County, north China’s Shanxi Province. Despite the fact that it gets warmer and flowers are blossoming outside, the cave remains coated with thick frozen ice. 

Colorful lights in the ice cave create a wondrous spectrum of styles, attracting visitors from both home and abroad.

The Ningwu ice cave has been listed as a National Geological Park in China. It stays frozen throughout the year even during the hottest summer days when temperatures rise above 30 degrees centigrade. Scientists say the ice cave was formed about three million years ago. It’s more than 100 meters deep at an altitude of approximately 2,300 meters and is connected to the Fenhe River, which is believed to be the water source.

Scientists say such caves are normally found in extremely cold areas, such as Antarctica or Siberia. But the Ningwu ice cave is at an altitude similar to Portugal. They are still researching how the cave formed.

The ice cave is open from April to October, with a maximum of 3,000 visitors per day.