New secret discovered at cave Vrelo

The divers have discovered large quantity of sufficient oxygen, on a depth of 120 meters. The measurements determined that the hall has a 19.8 percent oxygen, which is enough breathing man.

- They also found droppings and bats, suggesting that this part of the underwater cave is life. It suggests that somewhere there’s a supply of oxygen and that there is input through which the bats enter – said Vasil Sokolov, diver from Vrelo.
MANU, the Macedonian Academy of Sciense and Arts has taken part in the cave Vrelo research process.