The caves natural world offers many other features besides unusual crystal formations. There are 30 such pools and lakes in the Timpanogos Cave System. One pool, Hidden Lake , can be seen in Timpanogos Cave. A lake in Hansen Cave, not visible along the cave tour route, supplies drinking water for the fountain at the Grotto. In some pools, small wall-like formations made of calcite form rimstone dams .
Animals inhabit the caves, but they can be easy to overlook.
Such barely noticeable creatures as cave spiders, centipedes, and crickets live here. An occasional bat roosts in the caves, but no large bat colony such as those found in Carlsbad Caverns or in many other caves exist here. Occasionally a pack rat, mouse, chipmunk, or lizard visits. Without an underground stream or other steady source of food, however, the caves are not well equipped to support a diversity of cave animals. Like other cave features, the pools and cave animals are protected by the National Park Service.