Background

Discover the Wonders of The Lost Sea Adventure

4.7 (6745)

Explore the breathtaking beauty of The Lost Sea Adventure, home to the largest underground lake in America, nestled in Sweetwater, Tennessee.

Nestled in Sweetwater, Tennessee, The Lost Sea Adventure is a breathtaking underground lake that captivates visitors with its stunning beauty and rich history. Offering guided tours through enchanting caverns, this attraction is perfect for families and adventure seekers alike. Explore the wonders of nature while learning about the fascinating geology and history of this natural wonder. Don't miss the chance to take a boat ride across the largest underground lake in America, where you can witness vibrant rock formations and unique ecosystems that thrive in this subterranean world.

A brief summary to The Lost Sea Adventure

  • Monday 9 am-7 pm
  • Tuesday 9 am-7 pm
  • Wednesday 9 am-7 pm
  • Thursday 9 am-7 pm
  • Friday 9 am-7 pm
  • Saturday 9 am-7 pm
  • Sunday 9 am-7 pm

Local tips

  • Arrive early to avoid long wait times for tours, especially during peak season.
  • Wear comfortable shoes as you will be walking through caves and uneven surfaces.
  • Consider bringing a light jacket, as the temperature inside the caverns can be cooler than outside.
  • Don't forget your camera; the stunning rock formations and lake views are perfect for photos.
  • Check the official website for special events or seasonal activities that might enhance your visit.
widget icon

Do you manage this location?

Take control to get all the benefits, like improved information, better appearance, and stronger visibility across AI-powered discovery. Learn more

Activate your presence

Other nearby places you may find interesting

Attraction

Sequoyah Birthplace Museum

Discover the Legacy at Sequoyah Birthplace Museum
Attraction

Fort Loudoun State Historic Park

Discover the Historic Charm of Fort Loudoun State Historic Park
Attraction

Fort Loudoun State Historic Area

Step Back in Time at Fort Loudoun State Historic Area

Unlock the Best of The Lost Sea Adventure

Buy tickets

    No tickets available

Book tours with entry

    No tours available

Book tours without entry

    No tours available

Getting There

  • Car

    If you're driving, get on I-40 E from your location in East Tennessee. Follow I-40 E for approximately 45 miles until you reach Exit 362 for US-11 S towards Sweetwater. Merge onto US-11 S and continue for about 14 miles. Then, take a left onto TN-68 S. After about 4 miles, turn right onto Lost Sea Rd. The Lost Sea Adventure will be on your left at 140 Lost Sea Rd, Sweetwater, TN 37874. Parking is available on site, which is free for visitors.

  • Public Transportation

    For those using public transportation, you can take a Greyhound bus to Sweetwater from major cities like Knoxville or Chattanooga. Once you arrive at the Sweetwater bus station, you will need to take a taxi or rideshare service (e.g., Uber or Lyft) to reach The Lost Sea Adventure, which is about 10 miles away from the bus station. Be sure to check the local taxi services or rideshare apps for availability and fares.

  • Taxi/Rideshare

    If you're already in Sweetwater and need a quick way to get to The Lost Sea Adventure, you can use a local taxi service or rideshare apps like Uber and Lyft. The ride will take about 15-20 minutes from downtown Sweetwater. Make sure to confirm the fare before the ride starts, as it may vary depending on the time of day and demand.

Discover more about The Lost Sea Adventure

The Lost Sea Adventure, located in the heart of Sweetwater, Tennessee, is a must-visit destination for tourists seeking a truly unique experience. This underground wonder features the largest subterranean lake in the United States, drawing visitors from all walks of life to marvel at its natural beauty. The guided tours provide an extraordinary journey through the expansive caverns, showcasing stunning stalactites, stalagmites, and other geological formations that have been shaped over thousands of years. As you explore the fascinating history behind The Lost Sea, you'll learn about the ancient Native American legends that surround this mystical place, adding a rich narrative to your visit. The adventure continues with a serene boat ride across the crystal-clear waters of the underground lake, providing an intimate experience with nature. This picturesque setting is not only visually captivating but also a habitat for unique species of fish and other aquatic life, making it an excellent spot for nature enthusiasts. Families and children will find the experience especially engaging, as the guides share fun facts and stories that bring the caverns to life. In addition to the breathtaking views and educational tours, The Lost Sea Adventure offers various amenities, including a gift shop where visitors can purchase souvenirs to remember their adventure. There are also picnic areas for those looking to enjoy a meal surrounded by the natural beauty of the area. With its enchanting landscape and rich history, The Lost Sea Adventure is a destination that promises unforgettable memories for all who visit.

Explore the best of what The Lost Sea Adventure has to offer

Mobile App

Your all‑in‑one travel companion app

Explore expert travel guides, compare and book tours, experiences, hotels, and more—all from the palm of your hand. Download now for seamless trip planning wherever your wanderlust takes you.



Attraction

Explore the ancient beauty of Joyce Kilmer Memorial Forest, a serene escape in Nantahala National Forest, North Carolina, rich in biodiversity and scenic trails.

Joyce Kilmer Memorial Forest, Cheoah Ranger District, Nantahala National Forest
Attraction

Explore the rich heritage of the Cherokee Nation at the Sequoyah Birthplace Museum, a captivating journey through history and culture.

Sequoyah Birthplace Museum

Select Currency