 People visiting the caves can crush, damage and destroy food sources and important habitats of cave dwelling species, and also potentially kill rare and endangered species dwelling in the caves.Trampling of floors by large quantities of visitors also hard pack the dirt rendering it unsuitable as habitat for species.One aspect that draws tourists every year are the fantastic formation of speleothems present in the cave, otherwise known as stalagmites and stalactites, well as the sparkling calcite that adorns many of the cave walls.