Sweetwater, Tennessee: The Lost Sea

It's been lost in a cave. See the class show cave by glass-bottomed boat. It's more of a lake than a sea, but it contains fish and helpful underwater lighting.

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Lost Sea

America's largest underground lake, so big that the US Dept. of the Interior has designated it a Registered National Landmark. A guided walk through many interesting room (a former tavern and a bomb shelter) some of which are among the widest, highest and largest rooms of any cavern in the Southeast. Upon entering the lake room you will board large glass bottom boats and can observe some of the largest rainbow trout in the United States.

[Diane West, 09/27/2001]
Lost Sea Caverns - Vague Recollections

When I was in High School (from 1978 - 1982) my Explorer Scout trip used to take an annual trip to the Smokey Mountains in Tennessee. One of the many highlights of the trip was a visit to the Lost Sea Caverns located somewhere?? [Sweetwater] near Gatlinburg and the Smokey Mountains in Tennessee. There we would "Sail the Lost Sea" on a little boat. The Lost Sea is apparently a huge underground lake, one of the largest in North America. (they say.) These freaky white, eyeless fish and salamanders lived there, and they had stocked the lake (I think) with trout. We actually spent the night in the "Ballroom" of the caverns. Apparently the Caverns had been a speakeasy during prohibition, and they used to have dances there. The caverns were also stocked with crackers and dry goods because it was a designated bomb shelter (as in atom bomb).

Being young and adventurous teens, we would take a guided spelunking tour of some of the hard-to-reach portions of the caverns. The highlight of the tour, (and you had to belly crawl through miles of red clay to see this) was a the footprint of a Pliocene (I think) era jaguar.

[Carlene, 06/24/1998]

The Lost Sea

The Lost Sea

140 Lost Sea Rd, Sweetwater, TN
I-75 exit 60. Take Hwy 68 (Lost Sea Pike) east for a little over seven miles, then turn left onto Lost Sea Rd.
Open daily, hours vary with seasons. (Call to verify)
RA Rates:
Worth a Detour
Save to My Sights

Nearby Offbeat Places

Big Cows, Ice Cream - Dairy TourBig Cows, Ice Cream - Dairy Tour, Athens, TN - 11 mi.
Nocatula and ConnestogaNocatula and Connestoga, Athens, TN - 11 mi.
Giant CrossGiant Cross, Loudon, TN - 17 mi.
In the region:
Tail of the Dragon, Deals Gap, NC - 29 mi.

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