Cosmic Cavern

The largest privately owned cave in Arkansas that is home to 2 "bottomless lakes."

Arkansas is brimming with cave systems, and Cosmic Cavern in Berryville is certainly one worth exploring. Once you get a glimpse of the ethereal surroundings of the cavern, you’ll quickly understand why it was given its name. Situated in the Ozark Mountains, Cosmic Cavern is the state’s largest privately owned cave. Visitors can book guided tours that take them through a labyrinth of chambers adorned with breathtaking stalactites, stalagmites, and flowstones, creating a surreal landscape that feels otherworldly. Wild Tours are also offered, which occur after typical hours and in areas of the cave that are rarely seen. At 64 degrees, this cave has also been coined as “the warmest cave in the Ozarks.”

One of the aspects that sets Cosmic Cavern apart is its "Silent Splendor" formation, which is a collection of soda straws. Soda straws are hollow, crystalline rock formations that can turn into stalactites if the hole at the bottom becomes enclosed. “Silent Splendor” is one of the longest soda straw formations in the region, with some of the structures measuring 9 feet long. There are also 2 lakes within Cosmic Cavern that are said to be bottomless, since cave divers have tried and failed to find the bottoms of them.

Aside from the cave, guests can wander the grounds, enjoy picnic areas, pan for gemstones such as amethyst, citrine, fluorite, and rose quartz, and peruse the gift shop. Photographers are sure to love the endless photo opportunities above and below the surface, and bald as well as golden eagles are reportedly seen in abundance during the winter. Cosmic Cavern is truly a place for nature enthusiasts, families, and those seeking an unparalleled adventure here in northwest Arkansas.