(GMT)24 MAY 2017 GOP3D:
National Geographic Adventure named the diving at Bonne Terre Mine in Missouri one of the top 10 adventures in America, Everything is abandoned here. Shovels and picks lie silently on the ground waiting for their owners to return them to use. Long pillars rise to the ceiling a submerged auditorium....
Located just 60 miles south of St. Louis, the Bonne Terre Mine is one of the world's largest mines and was used more than a century ago. The mine shut down in 1962 and was flooded with groundwater, creating a billion-gallon underground lake filled with crystal-clear water. Although the Midwest experiences the four seasons of weather, the waters at Bonne Terre remain a constant 58º F
Once visitors are done exploring the vast underground caves, there's an entire additional world to experience underwater. With 88 different passageways, the waterlogged ghost town serves as a time capsule of the era and is a diver's dream. - Travel USA