Devil's Den

tmcc784 (Atlas Obscura User)

Devil’s Den is a karst window, in which the roof over a subterranean river has collapsed, exposing the water to the open surface. Located near Williston, Florida, it is privately owned and operated as a scuba diving training and recreational facility.

The pleasant year-around air temperature of 72 degrees allows comfortable diving, winter or summer. On cold winter mornings you can see steam, like smoke, rising from the cave’s chimney—the reason that early settlers called the place Devil’s Den.

Know Before You Go

Devil’s Den Spring is only open to scuba divers and snorkelers - not swimmers, casual visitors or children under 6 years old. No pets or animals are allowed, as the owners have their own pets/animals on the property and do not want confrontations with outside animals.

You must complete an insurance liability waiver upon entering the property, and you must be 18 to sign for yourself. If you are under 18, a parent must be with you to sign.

Reservations are not accepted; it’s first come first served. Priority is given to divers; they get first priority.

Snorkeling mask, snorkel, and fins are required, and free diving fins or breath-hold diving is not allowed.