Extreme sports fans from the Ural Province decided to go skating on the bottom of the 210 m deep abandoned mine.
Its quarrying began in 1936 and in 1988 its ore just ran out so they had to give it up. The mine had a diameter of about 1 km and was 300 m deep. Later, it became flooded forming a skating-rink with an area of over 300 m2.
They had to find out how to go down the mine safely.
Half way to the skating fun.
These stones have preserved some heat from last summer which is enough to melt snow.
What remained after the service lines.