Glassy waters, a stillness in the air. Welcome to Sweetwater Tennessee’s Lost Sea—America’s largest underground lake.
Spanning across more than four magnificent acres, the Lost Sea is home to enormous trout, rare cave flowers, and plenty of mystery.
With Lost Sea Adventure, guests will embark on a 3/4-mile guided trek through the caverns.
And if you’re not claustrophobic, you can even spend the night through Lost Sea Adventure’s Wild Cave Tour.
Do you have what it takes to spend the night in this eerie underground ecosystem?