The Ordinskaya cave is located on the southwestern edge of the village of Orda, Perm region, on the left bank of the Kungur River.
The Dave consists of "dry" and underwater parts. The length of the dry part is 300 meters and underwater - 4600 meters.
To date, the Ordinskaya cave is the longest water cave in Russia. In addition, a part of the cave is the longest siphon in the CIS - 935 meters. The cave is on the 21st place among the longest gypsum caves in the world.