Devil’s Den: Scuba the Hidden 120‑Foot Cave in Williston, Florida

WILLISTON SCUBA FIELD GUIDE

Devil’s Den: Scuba the Hidden 120‑Foot Cave in Williston, Florida

A focused, two‑hour scuba outing into Devil’s Den — a 120‑foot cave-fed spring with crystal‑clear, constant 72°F water — this guide distills what certified divers need to know.

Devil’s Den: Scuba the Hidden 120‑Foot Cave in Williston, Florida.

Duration
2 Hours
Location
Williston
Operator
Harness Eco Tours
Category
Scuba
Robert Eric Crews
Founder & Editor, The Adventure Collective
Published Verified

Dive into Devil’s Den Prehistoric Spring, an underground oasis tucked in Williston, Florida. The feature is a hidden, 120‑foot‑wide cave fed by a spring that holds a constant 72‑degree temperature year‑round, making it one of the state’s premier scuba destinations.

Highlights

Outing Highlights

THE LANDSCAPE

A Hidden, 120‑Foot Cave

Devil’s Den sits as a cavernous, 120‑foot‑wide underground chamber carved in limestone — a singular setting for underwater exploration.

THE WATER

Crystal‑Clear, Constant 72°F Spring Water

Like Florida’s other springs, Devil’s Den maintains a steady 72‑degree temperature year‑round, offering clear, temperate conditions for scuba dives.

THE EXPERIENCE

A Premier Florida Scuba Destination

Devil’s Den is framed as one of the state’s leading spots for scuba diving, a compact but dramatic underground spring that rewards certified divers.

What the day feels like

What the Dive Feels Like

The outing centers on exploring an underground spring cave — a contained, atmospheric dive through crystal‑clear water in a 120‑foot‑wide chamber that stays a steady 72 degrees year‑round.

Suitability

Who it's for

Who this outing suits — and who should look elsewhere.

1
Open‑water Certified DiversThis experience is intended for divers who hold an open‑water certification or higher and want a short, atmospheric cave‑spring dive.
2
Non‑certified TravelersNot a fit for non‑certified swimmers or snorkelers — certification is a firm requirement.
3
Quick‑trip DiversWith a 2‑hour outing time, the trip suits divers seeking a focused, single‑dive excursion rather than a full‑day expedition.
4
Year‑round DiversBecause the spring maintains a constant 72°F, the site offers consistent conditions throughout the year.

Practical planner

Details to review before reserving

Timing & Season

The spring temperature is constant year‑round at about 72°F, so the site is accessible in all seasons.

What to Bring

Participants must hold an open‑water (or higher) scuba certification and should be prepared to present proof; follow your operator’s guidance on equipment.

Logistics

Planned outing time is approximately 2 hours.

Booking Notice

Review cancellation policies before reserving.

Frequently asked questions

Planning Your Outing

Do I need scuba certification to dive Devil’s Den?

Yes — participants must be open‑water certified divers or above.

How long is the Devil’s Den outing?

The outing duration is approximately 2 hours.

What is the water temperature at Devil’s Den?

The spring maintains a constant water temperature of about 72 degrees Fahrenheit year‑round.

How large is the cave at Devil’s Den?

The feature is a 120‑foot‑wide underground cave that forms the spring chamber.

Is Devil’s Den a good spot for scuba diving?

Yes — it is framed as one of Florida’s premier scuba diving destinations, known for its subterranean spring setting.

Where is Devil’s Den located?

Devil’s Den is located in Williston, Florida, United States.