Photo credit: MSN
Researchers have been trying various tricks to protect the glacier.
The ice grotto moves along with the glacier, at approximately 10 cm per day downstream.
Due to this reason, each year, the tunnel has to be rearranged.
Photo credit: MSN
Researchers have been trying various tricks to protect the glacier.
The ice grotto moves along with the glacier, at approximately 10 cm per day downstream.
Due to this reason, each year, the tunnel has to be rearranged.
