Travel agency

The Lost Sea Adventure

49 locals recommend

Tips from locals

Mark
July 8, 2022
Only 53 minutes away. They offer tours that include a boat ride and with rainbow trout. They also offer This is the 2nd largest underground lake in the world.
Heidi
November 13, 2021
It’s a cave with a huge undefined lake…pretty cool!
Joshua
August 29, 2021
Craighead Caverns is an extensive cave system located in between Sweetwater and Madisonville, Tennessee. It is best known for containing the United States' largest and the world's second largest non-subglacial underground lake, The Lost Sea.
Adrienne, Tayler, And Dean
February 11, 2021
A fascinating exploration of the local cave system in our part of Tennessee! This one contains a large body of water with underground fish that have NO eyes! Take the boat tour and enjoy the year-round cool temperatures of the world deep below the surface of the earth!
Brandon
June 18, 2019
This is the largest underground lake in America.

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Location
140 Lost Sea Rd
Sweetwater, TN