Barton Springs Pool, a cherished natural oasis nestled within Zilker Park in Austin, Texas, is a three-acre, spring-fed swimming pool renowned for its consistently cool waters. Fed by underground springs from the Edwards Aquifer, the pool maintains an average temperature of 68-70 degrees Fahrenheit (20-21 degrees Celsius) year-round, offering a refreshing escape from Austin's often scorching heat. Beyond its recreational appeal, Barton Springs holds significant ecological importance as the sole known habitat for the endangered Barton Springs Salamander, making it a federally protected site. This iconic swimming hole has a rich history, attracting diverse crowds from families and casual swimmers to serious lap swimmers and those simply seeking to relax on its grassy banks, embodying a unique blend of natural beauty, historical significance, and ecological preservation.