7. Natural Bridge Caverns – Texas
Named for the 60-foot natural limestone bridge near its entrance, Natural Bridge Caverns is the largest commercial caverns in the country.
With two caves open for tours, a zip line course, a massive outdoor maze, and a chance to pan for gems and minerals, this is truly a destination for the whole family.
Several guided tours are offered including the popular Hidden Passages Tour ($20.99 adults, $12.99 ages 3-11) where you’ll explore underground chambers decorated with rare and delicate formations like long, thin soda straw stalactites, towering stone monuments and waves of colorful cave ribbon.