Welcome to a world unlike any other—where history meets adventure in the depths of Bonne Terre Mine. Nestled in the heart of Missouri, this hidden gem offers a scuba diving experience unlike anything you've ever imagined.
Descend into the darkness and discover a labyrinth of underground passages, illuminated only by the Illumination of the above lighting. Explore forgotten caverns adorned with intricate stalactites and stalagmites, remnants of a time long past. Marvel at the crystal-clear waters, which reveal a stunning array of geological formations and ancient artifacts.
But Bonne Terre Mine isn't just a dive—it's a journey back in time. Dive alongside remnants of the mine's industrial past, from abandoned mining equipment to rusted railway tracks frozen in time. Feel the weight of history as you navigate through chambers once bustling with activity, now silent and serene beneath the earth's surface.
Whether you're an experienced diver seeking a new challenge or a novice looking to embark on an unforgettable adventure, Bonne Terre Mine has something for everyone. Our knowledgeable guides will lead you safely through the depths, ensuring an experience that's as educational as it is exhilarating.
Check out the video of their visit
Visit the home of the billion-gallon underground lake - one of the Midwest 's most unique attractions.
It's a haven for scuba divers and non-divers alike.
You can experience this 150-year-old mine, which is also a National Historic Site on our walking and boat tours.
And, you can even stay in a historic train depot, a caboose or box car while you visit Bonne Terre.
So, what are you waiting for? Join us at Bonne Terre Mine and unlock the mysteries of the underground world. Your next great diving adventure starts here—book your dive today!
Take a combined boat and walking tour through the Bonne Terre Mine - a five level underground world created by St. Joe Lead Company from 1862 to 1963. It is now the home to the world's largest subterranean lake! The guided tour will descend to 200 feet below the earth where you will learn about the history of mining in Southern Missouri - once the largest deposit of lead on the planet. See the equipment and learn about mining life.
The walking portion of the tour covers about one third mile to the dock of the Billion Gallon Lake where our scuba divers start their descents into the crystal clear water. You will board the pontoon boat for a 10-minute excursion around the limestone pillars in the largest rooms of the mine. Features of the tour are the No. 1 elevator, submerged ore carts, wrapped pillars, and ancient abandoned overhead wooden catwalks suspended 50-100 feet above the lake.
While we do accept walk-up guests, we get very busy in the summer months, so prepaid reservations are recommended, particularly if your group is larger than four people. And, we do require reservations for groups of six or more.
The tour is 45-55 minutes depending on the group size and includes a 1/3 mile walk and a staircase with 65 steps in and out.
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