These caverns are over a mile long with a depth of 235 feet. The temperature is a fixed 52 degrees Fahrenheit and the cave contains stalagmites up to 80 feet tall. One of the more well-known stalactite formations named Snowy Chandelier weighs 30 tons. The cavern is domestic to a disappearing stream. Throughout the cavern you can hear the stream, but you cannot see where it goes. The stream comes out some eight miles from The Lost World Caverns. Living in this odd ecosystem are cave crickets and salamanders. The cave crickets are easy to spot throughout you're tour but the salamanders not so much. To see some salamander activity you'll want to be one of the first visitors in the morning.
Source: atlasobscura.com