Four underground camps established in the cave: in the Main Branch at −500, −1,200 and −1,400 m and in the Nekujbyshevskaja Branch at −500 m. Systematic inspection and probing of potential leads in the deep sections of the Main Branch; climbing in the Lamprechtsofen tributary; digging in the boulder choke in the Nekujbyshevskaja Branch.
Four underground camps established in the cave: in the Main Branch at −500, −1,200 and −1,400 m and in the Nekujbyshevskaja Branch at −500 m. Systematic inspection and probing of potential leads in the deep sections of the Main Branch; climbing in the Lamprechtsofen tributary; digging in the boulder choke in the Nekuybyshevskaya Branch.