In the Baths Area, there is a large complex of 17 caves, a pit of 50 meters, and many cave shelters. They were formed thousands years ago, when the water level was at the entrances to the caves before they formed the valley of Aridaia. Systematic excavations and explorations of caves unearthed ample evidence for the indigenous population. There is evidence for the life of man from primitive tools (sharp and polished, sharp spikes of stone arrows) and other articles, which indicate that the sites of caves used by the Neolithic or even Paleolithic era.