Devil’s Den Spring is a privately owned dive center and one of Florida’s most popular diving destinations. It is a natural sinkhole that is fed by an underground river, and the water is a constant 72 degrees Fahrenheit year-round. The spring is known for its clear visibility, which can reach up to 200 feet, and its unique underwater cave system. Devil’s Den Spring is home to a variety of marine life, including fish, turtles, and even alligators. Some of the most common fish seen in the spring include sunfish, catfish, and minnows. Turtles are also frequently seen, and there have even been reports of alligators swimming in the spring.