North Florida Cave and Technical Diving

Cavern Diver Course


The TDI Cavern Diver course offers the certified open water diver a first glimpse into the truly amazing and beautiful world of underwater caves. As the first of four steps toward the Full Cave Diver certification, this course allows the diver to explore that portion of the cave system within the daylight zone. You have the opportunity to experience the overhead environment in a controlled setting to determine if cave diving is of interest to you.

Since the Cavern Diver course serves as an extension of open water diving and your first introduction to the cave environment, most open water dive gear can be adequately modified for this course. In addition to standard open water gear, additional required equipment includes two lights (one should be of a tubular body design- not pistol or lantern grip) and a safety reel. Double tanks may be used at this level after consultation with your instructor.

Please review the Equipment Considerations section of this website for further discussion of dive gear.

Please be aware that enrollment in a TDI course, at any level, does not assure certification. Due to the risks involved in diving an overhead environment, only those students who meet specific performance criteria will earn their certification. Of key importance as the diver progresses from open water to the overhead environment is above-average buoyancy control and a high degree of comfort in the water. In-water skills include a no-mask swim along a guideline and air-share while under simulated zero visibility conditions.

The Cavern course requires two (full) days, four dives for completion. Curriculum consists of class sessions, gear review and modification, surface guideline drills and underwater skills.

Whether you decide to pursue additional cave training or not, the knowledge and experience gained in a Cavern course will serve to greatly improve your open water dive skills and awareness.

Prerequisites: Open Water Diver certification and a sufficient number of logged dives for the experience necessary to execute the skills required at this level of training. Please contact your instructor to discuss dive experience when considering this level of training.

Certifications Available: TDI


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Course Fees 

Intro to Cave Diver Course 




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North Florida Cave
and Technical Divers

PO Box 489 • Branford
Florida 32008-0489

(352) 404-5501

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