We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.
We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.

Lost Sea Adventure

140 Lost Sea Rd, Sweetwater, TN 37874
423-337-6616
Update attraction details
Ranked #1 of 3 attractions in Sweetwater
Type: Bodies of Water, Caverns/ Caves
Activities: Group tours/walking tour
Description: America's largest underground lake. - Open year-round except Christmas - Cost is $17.95 per person adults and $7.95 per person children ages 5-12.
Useful Information: Activities for older children, Activities for young children
Write a Review

179 reviews from our community

Visitor rating
    60
    77
    27
    10
    5
Date Rating
Sweetwater, Tennessee, United States
Senior Reviewer
7 reviews 7 reviews
Reviews in 4 cities Reviews in 4 cities
1 helpful vote 1 helpful vote
5 of 5 stars Reviewed 16 May 2013 NEW

Good, but very expensive. It is a really enjoyable experience. However there is a HUGE walk down into the cave to view and the boat ride. It will wear you so make sure you wear comfortable shoes.

Was this review helpful? Yes 1
See 3 more reviews by Tyler P for Sweetwater
florida
Top Contributor
66 reviews 66 reviews
57 attraction reviews
Reviews in 30 cities Reviews in 30 cities
32 helpful votes 32 helpful votes
5 of 5 stars Reviewed 12 May 2013

This was a fun Cavern for HEALTHY - YOUNG - kids and people, The walk down was great but the walk back up was tiring and long ( as for 3 couples ) we noticed they were falling behind and my sweetheart and his other officer friends pulled back to help them get to the top. The walk is soooo... More

Was this review helpful? Yes
Cartersville, Georgia
Senior Contributor
23 reviews 23 reviews
9 attraction reviews
Reviews in 9 cities Reviews in 9 cities
7 helpful votes 7 helpful votes
4 of 5 stars Reviewed 5 May 2013 via mobile

Definitely geared toward tourists, but the caverns are some of the largest we've visited. The boat ride was pretty cool with our corny tour guide, Isaac. Worth seeing and bringing the family to.

Was this review helpful? Yes
See 3 more reviews by gapeach5287 for Sweetwater
Palm City, Florida
Contributor
13 reviews 13 reviews
4 attraction reviews
Reviews in 7 cities Reviews in 7 cities
4 helpful votes 4 helpful votes
4 of 5 stars Reviewed 4 May 2013 via mobile

My family and I enjoyed our descent into the very spacious cave. Our guide was informative and accommodating. The cave remains a constant temperature throughout the year and you will be doing a lot of walking so a jacket isn't necessary. The lake was our favorite part because we saw a ton of fish. We had a good time.

Was this review helpful? Yes
Townsend, Tennessee
Top Contributor
51 reviews 51 reviews
20 attraction reviews
Reviews in 17 cities Reviews in 17 cities
3 helpful votes 3 helpful votes
2 of 5 stars Reviewed 3 May 2013

It is not a total bust. Lots of interesting history, but aside from that, a bore. The highlight was a short boat ride on a big underground pond and watch them feed blind fish.

Was this review helpful? Yes
Madisonville, Tennessee
Senior Reviewer
10 reviews 10 reviews
4 attraction reviews
Reviews in 4 cities Reviews in 4 cities
7 helpful votes 7 helpful votes
5 of 5 stars Reviewed 29 April 2013

We had a blast! The Lost Sea Wild Tour we took last Saturday was a ton of fun. We didn't spend a lot of time on the cave features, as most of us were locals and had been in the caves before. This was a youth trip with our church. We spent a lot of time on our backs and... More

Was this review helpful? Yes
Asheville, NC
Senior Contributor
31 reviews 31 reviews
15 attraction reviews
Reviews in 7 cities Reviews in 7 cities
9 helpful votes 9 helpful votes
4 of 5 stars Reviewed 18 April 2013

This was our daughter's first time in the cave and she loved it. Our guide was young but knowledgeable. Kind of off the beaten path, but worth the detour. Tour includes lots of cave scenery including their underground lake complete with boat ride.

Was this review helpful? Yes
Atlanta, Georgia
Contributor
17 reviews 17 reviews
16 attraction reviews
Reviews in 9 cities Reviews in 9 cities
9 helpful votes 9 helpful votes
3 of 5 stars Reviewed 15 April 2013

My eight year old loved going underground and exploring a very interesting cave system. I was a bit disappointed with the absence of stalagmites / tites. It just seemed like there was a lack of wow for the money we paid. But besides that, the boat ride was spooky enough, the lighting in the cavern made for great atmosphere, and... More

Was this review helpful? Yes
Charleston, AR
Contributor
16 reviews 16 reviews
3 attraction reviews
Reviews in 7 cities Reviews in 7 cities
6 helpful votes 6 helpful votes
4 of 5 stars Reviewed 11 April 2013

It was a great point of interest for my 12 year old... We waited 20 minutes for our tour to begin and then it takes about an hour and encompasses a 3/4 mile walk.. She really enjoyed it and was surprised to find an underground lake and boat ride in a cave... I really enjoyed it until we got to... More

Was this review helpful? Yes 1
Wooster, Ohio
Contributor
16 reviews 16 reviews
8 attraction reviews
Reviews in 10 cities Reviews in 10 cities
11 helpful votes 11 helpful votes
5 of 5 stars Reviewed 10 April 2013

Madison took us on a tour to the underground lake. This unique cave was used by the American Indians, and the Confederates, and is now a tourist site. We added this to our list of out of the way unique places to visit and we are glad we did.

Was this review helpful? Yes

Travellers who viewed Lost Sea Adventure also viewed

 

Been to Lost Sea Adventure? Share your experiences!

Write a Review Add Photos Add Videos

Owners: What's your side of the story?

If you own or manage Lost Sea Adventure, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.

Manage your listing