This ordinance was challenged in court by the Central Texas Nudists headed by Bob and Christine Morton, who, along with other naturist families, had been bringing their children to the site for years without incident. Part of Morton's argument was that the Texas Hill Country had been settled by many German and Czech immigrants in the middle-19th century, and nude sunbathing had been a part of their culture. An appeals court ruled in favor of the county in 1999, and the U.S. Supreme Court refused to hear the case ("Central Texas Nudists vs. Travis County") in October 2001. Hippie Hollow remains clothing optional, but with park usage restricted to those over 18.