Balmorhea State Park offers a cool oasis in the high desert of the Davis Mountains of far West Texas.. Dive into the crystal-clear water of the worlds largest spring-fed natural swim area. Swim, scuba dive, or just relax under the trees at this historic park in arid West Texas. The Civilian Conservation Corps built Balmorhea State Park in the 1930s. Nearly 80 years later, people are still cooling off at the park. Swim, scuba or skin dive, camp, geocache, study nature and bird watch. Explore our restored cienegas (desert wetlands), home to endangered fish and other wildlife. The park has picnic sites, an outdoor sports area and a playground. A group facility is available for a meeting or family gathering. Stay overnight at one of 34 campsites. or reserve a room at the San Solomon Springs Courts, motel-style retro lodging built by the CCC. The natural swim area is open daily; swimmers pay only the park entry fee. No lifeguard is on duty. Children under 18 must have permission to swim and must be accompanied by an adult at all times. More than 15 million gallons of water flow through the pool each day, gushing from the San Solomon Springs. The swim area is up to 25 feet deep, covers 1.75 acres, and holds 3.5 million gallons of water. The water temperature stays at 72 to 76 degrees year-round.