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Devil's Den is one of Florida's premier pre-historic springs. Located in Williston, Florida, this karst cavern is home to one of the most unique diving spots in the United States. â¦ Learn more about Devilâs Den Pre-Historic Spring , Opens a popup
Devils Den â Williston, FL What the hell does a day in the Devilâs Den have to do with cleansing the body and refreshing your soul? If you joined me, youâd know exactly why I picked this place to train for SHTF. The Devilâs Den is located in Williston, FL, and is a freshwater spring that maintains 71 degrees year round. It gets its name from the mist that radiates up from the ground through the hollow opening at the top of the cave on a cold winterâs morning.