The program "Caves of Ternopil" tells about the Ozerna gypsum cave, which people also call the Blue Lakes.
The cave was discovered by local residents in the 1940s. It is known that from 1943 to 1945, 38 people were hiding from the Nazis in the cave. And in 1946-1947 it served as a hiding place for members of the OUN-UPA.
There are comments from members of the Ternopil-based public organization Podillia Caving Club.