Tourist Attraction
The Lost Sea Adventure in Sweetwater, Tennessee, is home to America’s largest underground lake, located 140 feet below ground within the historic Craighead Caverns.
Formed naturally over thousands of years, the site was once used by Cherokee tribes and early settlers before becoming a major tourist attraction. The caverns feature stunning geological formations, including rare anthodites known as “cave flowers,” and maintain a constant temperature of about 58°F.
The underground lake, covering roughly four and a half acres, was rediscovered in 1905 by 13-year-old Ben Sands, who stumbled upon it while exploring. Guided tours take visitors along illuminated tunnels and culminate in a glass-bottom boat ride across the subterranean waters stocked with rainbow trout.
Traces of prehistoric life, such as fossilized jaguar tracks, and artifacts from Native Americans and Confederate soldiers enrich the site’s history. Recognized by the Guinness Book of World Records, The Lost Sea remains one of Tennessee’s most fascinating natural wonders, blending adventure, science, and history deep beneath the Smoky Mountain foothills.
| Phone | +1 423-337-6616 |
| Address | 140 Lost Sea Rd, Sweetwater, TN 37874, United States |
The Lost Sea Adventure is located in Tennessee, United States.
The Lost Sea Adventure is situated in the state of Tennessee.
The main phone number for the The Lost Sea Adventure is +1 423-337-6616.
The address of The Lost Sea Adventure is 140 Lost Sea Rd, Sweetwater, TN 37874, United States.
Yes, The Lost Sea Adventure is family-friendly and attracts visitors of all age groups.
Visitors usually spend a few hours to a full day exploring The Lost Sea Adventure.
Yes, there are several hotels and accommodations near The Lost Sea Adventure in Tennessee.
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