This site is a cave built by the dissolution of limestone that is currently located above andesite volcanic rocks and tuffs which was formed around 2,5-0,1 million years ago (Plistocene). Volcanic activity at that time was thought to produce eruptive material which was deposited into the shallow marine, so that the eruption product was then covered by carbonate material which later became limestone. This cave is a habitat for thousands of bats in it. Guano, which contains good phosphate, is also produced from this cave. This cave is also used for education, especially for the bat ecosystem and phosphate deposits. This place is the best location to see the activity of thousands of bats hunting for food from the late afternoon before sunset. These bats will return to the cave before dawn to sleep (picture attached).