The Experience: Longhorn Cavern is unusual in that a river formed it by rushing through it, instead of water dripping into it as most caves are formed. The entrance to the cavern was beautiful, with stairs built by the CCC in the 1930's and beautiful openings to the surface above. It is a great spot for pictures. The cave itself is also beautiful; there are many different rock formations, although not many stalactites or stalagmites due to the method of cave formation. It has interesting features such as the Indian Council Room once used by the Comanche Indians and the Queen's Watch Dog, a strange rock formation that was either carved in the distant past by people or by the river. There are also several areas filled with dazzling gem-like calcite crystals. The cave has some interesting stories and legends, such as its use to hide outlaw Sam Bass's money and the Texas Rangers rescuing a girl kidnapped by Indians and being held there. The temperature inside the cave is a nice, cool 68 degrees. The tour seems to be fine for children; our two-year-old was scared and crying at first, but when we told him that some of the rocks were (fictional) dinosaur bones, he walked the whole rest of the way and had a great time. There was a young guide accompanying the tour who was very friendly and glad to answer all of our eight-year-old's questions. He also found a bat for us (they are scarce in the cave), and knew a lot of interesting facts about the cave. The tour moved a little fast for us and we ended up well behind the main group, as we were letting our two-year-old walk. However, we may have been dawdling, as a couple with a stroller managed to keep up. Incidentally, the stroller they pushed was able to roll along most of the path fine; they only had to carry it in two places. The gift shop was great. Our daughter got a geode there to crack when she got home.