|A thing is right when it tends to preserve the integrity, stability, and beauty of the biotic community. It is wrong when it tends otherwise.|
|~Aldo Leopold ~|
However, it's the underground portion of the Park that attracts the greatest interest. The main cave has more than 30 miles of mapped passages full of spectacular formations. At dusk during warmer months, visitors can watch hundreds of thousands of bats emerge from the cave, heading out in search of food.