MO Posted in Missouri July 03, 2016 by Stephanie Zeilenga Most People Have No Idea You Can Do This One Awesome Activity in Missouri Think you need to head to the coasts to experience world-class scuba diving? WRONG! Missourians, you’ve got a great option much, much closer to home: The Bonne Terre Mine. Bonne Terre Mine The mine opened in 1860 and was one of the first deep-earth lead mines. It closed in 1962, but before that, it was the largest producer of lead ore on the planet! Bonne Terre Mine Now, it’s a highly rated dive site you’ve got to see to believe. Bonne Terre Mine Called Billion Dollar Lake Resort, the mine has been transformed into a 17-mile lake with, you guessed it, one billion gallons of water. Bonne Terre Mine This makes it the largest freshwater scuba diving venue in the WORLD. Bonne Terre Mine Its location in an abandoned mine means the environment can be carefully controlled to offer the best diving experience possible. Bonne Terre Mine There’s more than 100 feet of visibility at all times, thanks to the 500,000 watts of lighting, and the water is always 58 degrees. Bonne Terre Mine Experienced guides take groups through the mine’s 24 dive trails, where you can see mammoth archways, calcium falls and a variety of mining artifacts, including the elevator shaft. Bonne Terre Mine If you’re not a certified diver, walking and boat tours of the mine also are available. Bonne Terre Mine This year, USA Today’s Readers’ Choice awards named it America’s Best Underwater Attraction, and it’s also been named one of the top 10 adventures in America by National Geographic Adventure. Bonne Terre Mine Famous marine explorer Jacques-Yves Cousteau even visited once in the ‘80s! To see more of the mine, check out this video: For more unexpected Missouri, check out these castles sprinkled throughout the state!