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Places › The Lost Sea Adventure
The Lost Sea Adventure is a Tennessee attraction in Sweetwater, in our Chattanooga & Southeast region. A guided tour of Craighead Caverns ending in a boat ride on what the attraction calls America's largest underground lake. Hours, prices and rules below were read from the official site on October 30, 2026; prices change, so confirm before you go.
- Prices$29.95 and upsee the list below
- HoursListed belowas the site prints them
- ParkingNot publishedon the pages we read
- DogsNot publishedon the pages we read
Coming Up at The Lost Sea Adventure
None of the events on our checked calendar name The Lost Sea Adventure right now. The official site lists everything that is on. See every Tennessee event we have checked.
Also see Chattanooga & Southeast Events.
About The Lost Sea Adventure
A guided tour of Craighead Caverns ending in a boat ride on what the attraction calls America's largest underground lake.
- Guided tour of historic Craighead Caverns
- Boat ride on America's largest underground lake
- Remnants of past use by Cherokee Indians and Confederate soldiers
- Remains of a prehistoric jaguar
Size, as stated: About 1 hour 15 minutes, three-quarter-mile round trip
The Lost Sea Adventure Hours
- Open every day except Thanksgiving and Christmas Day; specific hours not listed on page read
Source: official hours page, read October 30, 2026.
Admission and Prices
- Adult $29.95
- Senior $28.95; military adult $28.95
- Child 4-12 $18.95; military child $17.95
- Children 3 and under free
Source: official prices page, read October 30, 2026. Prices change; confirm at checkout.
Parking
Parking details are not published on the pages we read.
Dogs and Accessibility
- Dogs: Not published on the pages we read.
- Accessibility: Not published on the pages we read.
Directions and Contact
- Address140 Lost Sea Road, Sweetwater, TN 37874
- Phone(423) 337-6616
- Map point35.53444,-84.43272. Directions in Google Maps
- Official sitethelostsea.com
Places Near The Lost Sea Adventure
- 1Fort Loudoun State Historic ParkState Historic Parkabout 13 mi
- 2Hiwassee River State ParkState Parkabout 22 mi
- 3Ocoee River State ParkState Parkabout 31 mi
- 4Cherokee Trail of Tears State ParkState Parkabout 33 mi
- 5American Museum of Science and Energy (AMSE)Attractionabout 35 mi
- 6Justin P. Wilson Cumberland TrailState Park Unitabout 37 mi
Straight-line distances between map points, not driving miles. Dots sit in their true compass direction; distance is stretched near the middle so close neighbors stay readable.
Frequently Asked Questions
How much does The Lost Sea Adventure cost?
Adult $29.95 Prices change; confirm on the official page.
What are the hours at The Lost Sea Adventure?
Open every day except Thanksgiving and Christmas Day; specific hours not listed on page read
Where do I park at The Lost Sea Adventure?
Parking is not described on the pages we read.
Are dogs allowed at The Lost Sea Adventure?
The pages we read do not state a pet policy; call before you bring a dog.
What We Could Not Verify
- Daily hours
- Parking
- Dog policy
- Accessibility
- Cave temperature
- Site notes lower-than-normal lake levels due to drought and advises advance tickets; effect on the boat ride not stated
Sources
Last checked October 30, 2026 by the It’s Tennessee editor. Spot something out of date? Tell us.
Cite this page: It's Tennessee, “The Lost Sea Adventure”, itstennessee.com/places/the-lost-sea-adventure/ (updated ). By the It's Tennessee editorial team. Free to quote with attribution and a link to this page; data and tables are licensed CC BY 4.0.