Kentucky’s disappearing Lost River reappears in this underground cave, which hides the blue hole.

Long before the cave became a tourist attraction, it played an important role in the nations history.

It was an ancient native hunting ground before serving as a Civil War campground.

Cave Boat Tour at Lost River Cave in Bowling Green, KY

Credit:Courtesy of Visit BGKY

The Lost River Cave sits below a wooded, urban 72-acre park in the center of Bowling Green.

Cave Boat Tour at Lost River Cave in Bowling Green, KY

Courtesy of Visit BGKY

The springs at Lost River Cave in Bowling Green, KY

Courtesy of Visit BGKY