Hippie Hollow Park Situated on 109 peaceful acres, Hippie Hollow is a clothing optional park securely nestled in the natural beauty of the Hill County of Lake Travis, only 20 minutes off Interstate 35, but a world away from the bustle of nearby Austin, a haven for those who wish to escape the rigors of modern life in a safe and comfortable nudist atmosphere. Address: 7000 Comanche Trail, Austin, TX 78732 http://www.hippiehollow.com/ Phone: (512) 854-7275