Underground glacier

--The underground glacier is a snow cave dominated by frost and snow. At the bottom of the cave, there is an underground glacier ten thousand years ago, which is the longest volcanic underground lava tunnel found in China. The length of the glacier is more than 500 meters.

--The cave is winding and full of ice at the bottom. The temperature in the tunnel is about - 5 ℃ all the year round. The wall and top of the cave are covered with frost. The stone pillars and stalactites in the cave are particularly spectacular.

Underground glacier

The underground glacier is located in the northwest of East jiaodebu mountain. It is a snow cave dominated by frost and snow. The bottom of the cave is an underground glacier ten thousand years ago. At present, the length of the developed glacier for sightseeing is 380 meters, and another 150 meters belong to the exploration area.

brief introduction

The underground glacier with a depth of 25 meters is that when the nearby volcano erupted, the hot magma was flowing, and the surface was cooled by cold air and solidified into a hard shell, while the lower lava was still flowing, and the subsequent magma supplement was not timely and formed a hollow. As the magma cools and solidifies, the hollow part forms a magma tunnel. Due to the existence of island permafrost in local area, with the infiltration of snow melting in spring and precipitation in summer, the underground glaciers with nine bends and eighteen bends are formed. The temperature of the cave in the four seasons is - 12 ℃. The cave is full of ice and frost. The cold is pressing. The bottom of the cave is sloped, covered with ice, smooth as a mirror. The walls of the cave are covered with frost. At the end of the cave are two stone pillars like big banyan trees. It's amazing. It's beautiful. At the end of the cave are two stone pillars like big banyan trees. It is the longest underground lava tunnel in China. There are many kinds of wall carvings hanging on the wall of the cave.

structure

The surface of the cave is covered with trees. Because the cave is long and has many turns, the bottom of the cave is covered with ice, which is like an glacier hidden underground, so it is called underground glacier. The entrance of the lava cave is 1.4 meters high and 2 meters wide. You need to bend down to enter the cave. After entering the cave, it is a wide cave with 335 degrees northwest, 10 meters wide and 2.0-2.5 meters high. The bottom of the cave freezes. It is an ice slope with an inclination of 35 degrees and a length of 5 meters. Down the slope, the height of the cave increases. The ice slope at the bottom of the cave is 10-13 degrees. After several turns, the slope becomes about 5 degrees. The cave is generally 8-10m wide and 2-3m high. At the depth of 213 meters, the cave widens, the widest part can reach more than 20 meters, and the highest part is nearly 4 meters, forming a hall with an area of 370 square meters. In the middle of the hall, there are two thick rock pillars leading to the top of the cave. After passing the hall, the cave turns to the direction of 325 degrees to the northwest, the slope at the bottom of the cave becomes gentle, and it goes through two turns to the top of the cave. At the end of the tunnel, there is no ice at the bottom of the tunnel and there is soil deposition. The maximum thickness of overburden at the top of the tunnel is more than 30 meters, and the height difference from the entrance to the terminal is 20 meters.

There are many fissures in the cave, and there are collapses at the top and wall of the cave. In the complete section of the cave top and wall, the cross section is arched and there are spinel lava stalactites, and there are frost flowers on the cave top and wall. The cave was not damaged and remained in its original state.

Address: Wudalianchi Town, Wudalianchi City

Longitude: 126.27855583859

Latitude: 48.656184531323

Tour time: 1 hour

Traffic information: the underground glacier is located 10 kilometers east of Shengshui square tourist center

Ticket information: 30 yuan / person

Opening hours: 8:00-17:00 from May 1 to October 31