World
The border chasm revealed another part, the robot dived down to 450 meters
Hranická propast, the world’s deepest flooded cave, is at least 450 meters long, speleologists measured today. The depth measured so far was 404 meters.
Hranická propast, the world’s deepest flooded cave, is at least 450 meters long, speleologists measured today. The depth measured so far was 404 meters.