Current River Cavern is a show cave

Show cave

Show caves — also called tourist caves, public caves, and in the United States, commercial caves — are caves that are managed by a government or commercial organization and made accessible to the general public, usually for an entrance fee...

 located in one mile west of Van Buren, MO on U.S. Highway 60. The cave is located inside Cave Spring Park.
The cave was first opened as a show cave in 1940 under the name "Cave Spring Onyx Caverns".

Current River Cavern was formed exclusively by the stream that still runs through the cave; a rarity among Missouri caves. The cave is set in Eminence Dolomite

Dolomite

Dolomite is a carbonate mineral composed of calcium magnesium carbonate CaMg2. The term is also used to describe the sedimentary carbonate rock dolostone....

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The commercial section of the cave extends 240 ft before ending at a flooded passage. A 1996 survey reported 2,384 ft of passages extending far beyond the commercial section. The owners are seeking an alternative entrance and hope to open more of the cave to visitors in the future.

Current River Cavern is the first show cave to use all battery powered, wireless LED

LEd

LEd is a TeX/LaTeX editing software working under Microsoft Windows. It is a freeware product....

 lights for illumination. The LED lights do not promote algae

Algae

Algae are a large and diverse group of simple, typically autotrophic organisms, ranging from unicellular to multicellular forms, such as the giant kelps that grow to 65 meters in length. They are photosynthetic like plants, and "simple" because their tissues are not organized into the many...

growth or harm cave life. In addition, the lack of wires through the cave creates a more safe and natural experience.