The park features historical and nature study. Located in the heart of the Highland Lakes, Longhorn Cavern is near four different lakes and communities that offer excellent opportunities for camping, fishing and hunting. The cave is 68 degrees year-round. The park offers guided tours that last approximately 1 hour and 25 minutes (a 1.25-mile round trip). For your safety and Comfort, low-heeled shoes with rubber soles are recommended. The Visitor Center opens daily at 9 a.m. every day except Christmas Eve and Christmas Day. The first tour leaves between 10 and 11 a.m. Tours are conveniently scheduled throughout the day.