Longhorn Caverns has an interesting history which is explained in excellent detail by the tour guide. The tour of this cave takes about an hour and a half. The cave was formed by fast moving water a few million years ago and so has very few formations (such as straw and stalagmites) that other caves in the Texas hill country have. The cave is fairly commercialized and has always been so. During prohibition it was a bar. Today, parties may be hosted there in the Indian Council room. But the fact that it is commercialized doesn't mean it isn't worth visiting. The rock variations are very interesting and the history is worth hearing about from a guide. For instance, the cave was used by Confederate troops who made gun powder from bat guano, some of whom died in the process. Unfortunately, the entrance fee is a little pricey.
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