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All the United States Tennessee Sweetwater Lost Sea

Lost Sea

Enormous lake at the bottom of a unique cave system.

Sweetwater, Tennessee

Added By
Myrandis
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The Lost Sea   Kreg Steppe/CC BY-SA 2.0
The Lost Sea   Kreg Steppe/CC BY-SA 2.0
Entrance to the Lost Sea   Photo Bungler/CC BY-ND 2.0
Entrance to Lost Sea   cblakewest / Atlas Obscura User
  ariadnemaze / Atlas Obscura User
  ariadnemaze / Atlas Obscura User
  ariadnemaze / Atlas Obscura User
  ariadnemaze / Atlas Obscura User
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About

This beautiful cavern includes a 3/4-mile talk through an intricate cave system that leads a huge number of visitors and tourists to an underground lake known as the Lost Sea. Once visitors reach the lake they are able to board a flat-bottom boat and ride around on its smooth, glassy surface. There are also tours that allow visitors to spend the night in the cave and explore some of the lesser-seen parts of the enormous cavern.

The Lost Sea is known as America’s largest underground lake; it covers more than four acres. Recognized by the United States Department of the Interior as a registered National Natural Landmark, the Lost Sea at the bottom of this cavern is not just large and beautiful. It’s also unique because it contains an abundance of “cave flowers,” or rare anthodites. The lake is also stocked with some of the largest trout anywhere in North America.

The lake was first discovered in 1905, but the full extent of the Lost Sea is still not known despite the efforts of divers who have traveled throughout the cave system armed with modern exploration equipment. Thanks to them, though, we know that the visible portion of the lake is about 800 feet long and 220 feet wide. Beneath the calm waters of the giant lake, the adventurous divers have found a series of large rooms filled entirely with water. More than 13 total acres have been mapped so far.

Related Tags

Caves Natural Wonders Ecosystems Nature Water

Know Before You Go

Take Hwy 68 (Lost Sea Pike) east for a little over seven miles, then turn left onto Lost Sea Road.

Community Contributors

Added By

Myrandis

Edited By

mmiraglia, paigemindsthegap, ariadnemaze, cblakewest...

  • mmiraglia
  • paigemindsthegap
  • ariadnemaze
  • cblakewest
  • Michelle Cassidy

Published

June 13, 2011

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Sources
  • https://paigemindsthegap.com/the-lost-sea-adventure/
  • Yahoo! Travel: Lost Sea, Sweetwater: http://travel.yahoo.com/p-travelguide-3003505-lost_sea_athens-i
  • Roadside America: Sweetwater, Tennessee - The Lost Sea: http://www.roadsideamerica.com/tip/4415
  • TripAdvisor: Lost Sea Adventure: http://www.tripadvisor.com/Attraction_Review-g55368-d143739-Reviews-Lost_Sea_Adventure-Sweetwater_Tennessee.html
Lost Sea
140 Lost Sea Road
Sweetwater, Tennessee, 37874
United States
35.534925, -84.431981
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Nearby Places

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Photo of Tennessee

Tennessee

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Places 175
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Tennessee

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