About the Lost Sea

The Lost Sea is a natural wonder located in Sweetwater, Tennessee. It is the largest underground lake in the United States and one of the largest in the world. The lake is part of a complex of caves known as the Craighead Caverns, which were formed millions of years ago.

The Lost Sea is a popular tourist attraction, attracting thousands of visitors each year. Visitors can take a guided tour of the caves and the lake, and learn about the history and geology of the area.

Swimming in the Lost Sea

Many visitors to the Lost Sea wonder if they can swim in the lake. The answer is no, swimming is not allowed in the Lost Sea. There are several reasons for this:

• The water in the Lost Sea is very cold, with an average temperature of 58 degrees Fahrenheit. This can be dangerous for swimmers, especially those who are not used to cold water.
• The water in the Lost Sea is very deep, with a maximum depth of over 100 feet. This makes it difficult for lifeguards to monitor swimmers and ensure their safety.
• The Lost Sea is a fragile ecosystem, and swimming can disrupt the delicate balance of the lake’s ecosystem.

While swimming is not allowed in the Lost Sea, visitors can still enjoy the beauty of the lake from a glass-bottom boat. These boats allow visitors to see the underwater world of the Lost Sea without disturbing the ecosystem.

Safety Precautions

While swimming is not allowed in the Lost Sea, visitors should still take precautions to ensure their safety during their visit. Some safety tips to keep in mind include:

• Wear comfortable, sturdy shoes with good traction. The cave floors can be slippery and uneven.
• Stay with your tour group and follow the instructions of your guide.
• Do not touch or disturb any of the cave formations or wildlife.
• Do not bring food or drinks into the cave.
• Be aware of your surroundings and watch your step.

Tips for Visiting the Lost Sea

If you’re planning a visit to the Lost Sea, here are some tips to help you make the most of your experience:

• Wear comfortable clothing that you don’t mind getting dirty. The cave can be damp and muddy.
• Bring a jacket or sweater, as the cave can be cool.
• Arrive early to avoid crowds and ensure that you get a spot on the tour.
• Take advantage of the photo opportunities. The cave and the lake are incredibly beautiful and make for great pictures.
• Consider bringing a small flashlight or headlamp to help you see in the darker areas of the cave.