Not What They Were Expecting

Usually, inside regular caves, formations of stalactites and stalagmites are seen everywhere. Stalactites are icicle-looking formations that happen when water that drips from the ceiling, making shafts that drop down from above and have pointy tips. Stalagmites, on the other hand, look just like stalactites but come from the floor, where water has dropped, causing cone-like shapes to form, but usually more rounded on the tips.

Understanding The Depths

In the case of the Movile Cave, what scientists found was lots of clay, and a very thick layer of it. This was quite astonishing as it was curiously uncommon for a cave. And aside from that, most of the scientists that were able to explore the cave knew that clay makes it highly improbable for water to pass through it. So they were wondering, where was all the water inside the cave coming from?