Stalactites Glowing

Science Fantasy Experience: Black Light Tours

April 2024

Written by Stalac-Tate & Holly

Enter into a different world

Imagine walking into a cave where the stalactites and stalagmites glow bright green, leading you through the darkness. While glowing cave formations may seem like something out of a Sci-Fi novel, Cave of the Mounds has brought fiction to reality. A special mixture of minerals causes our cave formations to glow under ultraviolet light. 


And not only that, they keep glowing even when you turn off the lights. By shining a black light on the rock, you charge the stone up like a battery, and that energy leaves it as a glow called phosphorescence. Because of this effect, guests can write their names and draw pictures on the formations and then watch them fade away as they continue down the path. 

Unique Experience

This unique phenomenon can’t be seen in every cave, so, to make the most of it, Cave of the Mounds hosts exclusive black light tours twice a month which allow guests to walk the cave in a way never thought possible by the first explorers: guided by glowing formations that are illuminated solely by the black lights held by our visitors.  

Glowing Cave