Cave Without a Name is locate just 11 miles north of downtown Boerne and is a designated Natural National Landmark. This living cavern hosts 6 major rooms filled with spectacular stalactites, stalagmites, delicate soda straws, cave drapery, magnificent flowstones, rimstone dams, an unusual helectite, and more amazing formations! Also, Monthly Concerts in the Cave are held down in Queen’s Throne Room. Aboveground, kiddos can mine for gemstones and fossils, have a geode sliced open right in front of their eyes or take a hike one of the designated trails around the property. Above ground, kiddos can mine for gemstones and fossils, have a geode sliced open right in front of their eyes or take a hike on one of the designated trails around the property.