Profile Map

The profile of the lava tunnel entrance is generally elliptic. The roof is arched and covered densely with hanging lava stalactites. On the wall of lava tunnel, there are one to three nearly horizontal successive lava beds and lava disks regularly, whose part developed into the large lava basin. The floor of the lava tunnel is usually in the shape of iron pot, on which ropy lava, wavy lava and lava flowers exist.