📜 America's largest underground lake, part of Craighead Caverns.
🔍 Registered National Natural Landmark.

Why Go

🌊 Mysterious underground lake
🛶 Flat-bottom boat ride
💎 Rare "cave flowers" (anthodites)
🐟 See large trout
🚶 Explore historical caverns

Why Avoid

🚶‍♀️ 3/4-mile walk on sloping path
⛰️ Walk back up from 140 feet underground can be a hike

Tips

🌡️ Constant 58-degree underground temperature
⏰ Tour lasts about 1 hour and 15 minutes

Cost

💰 Adults $28.95, Children (4-12) $16.95, Seniors $27.95, Military Adult $27.95, Military Child $15.95, Children 3 and under free.

Hours

🕒 Daily, except Thanksgiving and Christmas Day.

🅿️ Parking

Take Hwy 68 (Lost Sea Pike) east, then turn left onto Lost Sea Road.