≡ Home ≡

lost sea header

You have never seen, heard, or done anything like this before!

Stroll through an 18th century village, explore huge fascinating caverns, then float across America’s largest underground lake!

Find yourself, your friends, your family at the Lost Sea Adventure. It’s an adventure that memories are made of!

America's largest underground lake, located in beautiful Sweetwater, Tennessee. We are open every day of the year for tours (except Christmas Day). Be sure to bring your camera and be prepared for an unforgettable experience!

We also host a Wild Cave Tour for organizations such as Schools, Camps, Churches, and Scouts. Check out our web site, and come visit us soon!

Find out more! »

Call today to find out more!
(423) 337-6616
Seven Miles Off I-75 at Sweetwater, TN • 140 Lost Sea Road, Sweetwater, TN 37874 • Find Directions »