4 Best Sights in The Hill Country, Texas

That's not a typo; this cave officially has no name—or rather, not having a name is part of its name. The story goes that in 1939, the owner of the cave, James Horne, held a public contest to name the cave. A young boy commented that the geological site was too beautiful to name and won the contest with the suggestion that it be called Cave Without a Name. Similar to the other living limestone caverns in the region, the cave has magnificent stalactite and stalagmite formations and calcite deposits. Be sure to make reservations in advance.

Formed over thousands of years from water cutting and dissolving limestone bedrock, Longhorn Caverns are a fantastic exhibit of Texas natural history. With a history of Comanche tribes seeking refuge in the caves and calcite-crystal beds, the caverns are a perfect destination for families interested in how the limestone caverns in the Hill Country were formed. Be sure to wear rubber-sole shoes; it gets slippery down there.

Take a half-mile tour here past awe-inspiring limestone formations, deep caverns, stalactites, and stalagmites; you may even catch a glimpse of the endangered Cascade Caverns salamander. Watch for the impressive 100-foot waterfall spilling into a black pool at the end of the tour.

One of the largest Mexican free-tailed bat colonies in the world is found in the hills of Mason County. Managed by the Texas Nature Conservancy, Eckert James River Bat Cave, a maternity bat cave, is home to more than 4 million. Only females inhabit the cave, where they bear and rear their young each spring; they depart in mid-October. You can watch in the evening and morning as the entrance to the cave swarms with female bats leaving and returning from an evening hunt to feed their pups. Stand clear of the entrance, unless you don't mind bat guano or having thousands of female bats buzz by. The best way to glimpse this phenomenon is from a safe distance a few hundred yards away.