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.
Blue Hole (Rawley Springs)
The swimming hole has not been developed with a parking area and easy access, although for some this is also the allure. Most people park on the shoulder of Route 33 just past Rawley Springs heading west. A short but steep climb down to the river follows. The path's location is unmarked but worn enough to be noticeable.