
The Devil’s Hole. Yet another sinkhole with a demonic name, the Devil’s Hole in Hawthorne, Fla., is about 100 feet (30 meters) deep. It’s also known as the Devil’s sink and is a popular spot for locals and even has a rope swing and two jumping platforms. Originally the site of a limestone dig, the sinkhole has an underwater entrance leading to a cave system that few divers dare to explore.