The Sarma exploration project wasn't only the chance to break the world record held by Voronja, but also the first time the team's work was filmed all the way down the cave. First visuals ...
Directed byRoman Chrzanowski
Written byRoman Chrzanowski, Siergiey Shipicin
CountryUSA, Russia
Runtime51 min
On screen
Siergiey Shipicin