Barton Springs Pool is a natural spring-fed pool located in Zilker Park in Austin, Texas. The pool is approximately 1,000 feet long and maintains a consistent temperature of around 68-70 degrees Fahrenheit year-round, making it a popular spot for swimming and relaxation. The pool is part of the Barton Springs complex, which includes several smaller pools and is home to various wildlife, including the endangered Austin blind salamander. Open to the public, Barton Springs Pool is a favorite destination for both locals and tourists, offering a unique outdoor experience in the heart of the city.