Blue Hole (Big Pine Key)
The Blue Hole is an attraction on the island of Big Pine Key in the Florida Keys. It is an abandoned rock quarry that was used for nearby road fills and Henry Flagler's Overseas Railroad. The water it contains is mostly fresh and is used by various wildlife in the area, such as birds, snakes, alligators, key deer and green iguanas. It is part of the National Key Deer Refuge.
Winslow Township, New Jersey
The Blue Hole is a body of water in the middle of woods that is clear blue and always cold, even in the summer, with a very steep shoreline and a maximum depth of approximately , though "Weird NJ" describes the water as "bottomless" and claims that it is a haunt of the Jersey Devil.