Built in 1939, the stairwell into the cave has 126 steps descending to about below the surface. The cave maintains a constant temperature of . Within the cave are two main areas. The main set of chambers open to the public make up the show cave, extending just over a quarter of a mile. This part of the cave consists of six large, well-lit rooms full of
speleothems, including
stalactites,
stalagmites,
helictites, columns, and draperies. The second main area of the cave is an extensive set of caverns linked to the underground extension of the
Guadalupe River. During a 1975 expedition of the Cave Without a Name, cavers mapped out over of caverns, making it the seventh-longest cave in Texas. Due to the great natural acoustics created by three large solution domes on the ceiling of the Throne Room, the cave is host to 12
concerts yearly with a maximum attendance of 200 people. The music events vary from classical musicians, folk, Broadway, opera, and seasonal vocal groups. Unique features of the cave include the set of rimstone dams beneath the natural spring-fed pool, a special specimen of cave drapery our "Texas-sized
cave bacon" thought to be the longest in Texas, stalagmites that resemble the
nativity scene, and a large leaning column known as the Leaning Tower of Boerne. In the winter months, the cave becomes home for the solitary
Tricolored bat. These seasonal inhabitants do not interfere with the tours as they only use the cave for hibernation. Another resident of the cave is a rare blind Texas salamander known as the
Kendall County salamander that may only be found in the Cave Without a Name and another area cave,
Cascade Caverns. In addition to cave tours, guests to Cave Without a Name may enjoy
hiking trails,
gem panning, use of picnic tables, and RV and tent camping. Some activities require an additional fee. The gift shop features a large selection of rocks, stones, and
fossils for sale, including numerous amethyst cathedrals, jewelry, and more. Guests can choose from several sizes of uncut
geodes and have them sliced open in the large geode saw onsite. ==Accident==