The Springs serves as home to the endangered Barton Springs Salamander, and is listed as a federally protected habitat. The pool is closed to the public from 9a-7p every Thursday to allow for the vigorous and methodical cleaning methods required to help maintain the pool area for wildlife and guests alike. Depths of the pool range from 0’ to 18′ with surrounding grassy areas for patrons to lounge upon. Adjacent to the pool bathhouse is Splash!, an educational exhibit where patrons can learn about the history and biology of Barton Springs and the Edwards Aquifer which feeds it.