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Water Activities at The Lost Sea Adventure - Chattanooga

Water Activities at The Lost Sea Adventure

Chattanoogaeasy

Difficulty

easy

Duration

2–3 hours

Fitness Level

Moderate physical activity; walking and standing for extended periods

Overview

Discover the largest underground lake in North America at The Lost Sea. Join a guided tour that combines stunning cavern sights with relaxing boat rides—an adventure you won’t forget.

Sweetwater, Tennessee

Daily Admission and Tour

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Adventure Photos

Daily Admission and Tour photo 1

About This Adventure

Embark on an unforgettable adventure at the Lost Sea, where you'll explore stunning caverns and America’s largest underground lake. Enjoy a guided tour filled with captivating stories of the cavern's history and geology, followed by a serene boat ride. Don't miss the charming shops at Lost Sea Village before or after your tour!

You have never seen, heard, or done anything like this before…


Duration

Upon arrival please check in at our ticketing desk to have your tour time assigned. All tours start on time. If you arrive late you will be given the next available time slot. The tour takes approximately 1 hour and 15 minutes. Either before or after your tour you might want to visit the Lost Sea Village where we have several shops. The gift shops in the Village are open seasonally.


About

Your Lost Sea adventure begins with a guided tour of the caverns. This involves a ¾ mile round-trip walk on wide sloping pathways. While touring the caverns and underground lake our guides will tell of the cavern’s exciting and colorful history. They will also explain the fascinating geological development of the immense cavern rooms and rare formations. At the bottom of the cave you will take a boat ride on The Lost Sea, America’s Largest Underground Lake.

Adventure Tips

Wear sturdy shoes

Comfortable, closed-toe shoes are recommended for exploring caverns and walking through the village.

Bring a light jacket

Caverns maintain a cool temperature year-round, so a light layer keeps you comfortable.

Book tickets in advance

Secure your spot early, especially during peak season, to avoid disappointment.

Visit early or late in the day

Less crowded times provide a more intimate experience on the boat tour.

Local Insights

Wildlife

  • Bats
  • Cavefish

History

The cave was discovered in the 1930s and has since become a popular tourist attraction for its size and natural beauty.

Conservation

Efforts are in place to preserve the cave's delicate formations and ecosystem by limiting visitor impact and conducting regular maintenance.

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Frequently Asked Questions

Recommended Gear

Sturdy walking shoes

Essential

Provides grip and comfort while exploring cavern floors.

Light jacket or layer

Keeps warm in the cool cave environment.

Camera or smartphone

Capture stunning underground scenes and lake views.

Small backpack

Carry personal items, water, and souvenirs.