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Cavern Diving Instructor



The SSI Extended Range Cavern Diving training provides you with the knowledge and experience required to independently plan and conduct cavern penetration dives within the light zone at depths less than 40 meters/131 feet. You will learn how to use specialized cavern diving equipment and the gas management concepts. Upon completion of the program the diver is certified as follows: SSI Extended Range Cavern Diving Instructor.

The XR Cavern Diving Instructor course include:

A review of all XR Standards and all SSI Dive Center/Resort Standards.
A dive planning session.
A confined water session that includes the presentation and the evaluation of all water skills required in the Cavern Diving program. All skills must be to demonstration standard.
While acting as an instructor, plan and conduct at least two (2) dives from the Cavern Diving program. During the dive, the candidate will supervise an assistant or another instructor candidate acting as the student during the training dive.
Demonstrate the ability to rescue an unconscious diver by traveling horizontally for 10 meters, then bringing the diver to the surface from a depth of between 5m and 10m, establishing positive buoyancy, evaluating the diver’s status, removing all equipment and removing the diver from the water. (Assistance may be used ONLY for the handling of equipment once it is removed from the diver) This skill must be completed proficiently and without unnecessary time delays depending upon the conditions present at the rescue site.
Complete an appropriate equipment assembly workshop.
Complete the water skills evaluation as outlined in the General Standards.
Complete the Cavern Diving Instructor final exam with a passing score of 90%.

Active status XR Cavern Diving Instructors may teach, supervise and issue certifications for the following program:

XR Cavern Diving


The course is taught by SSI / XR Technical Extended Range Instructor Trainer Ivan Karadzic on Koh Tao, Thailand. Ivan has been a sidemount diver since 2010 and is rarely seen in other configurations. 

During the course we will focus on real life diving, you will get introduced to common learner problems and their solutions, how to properly fit your students in their equipment, equipment maintenance and problem solving. Your diving skills are expected to be perfect as this is not a diving course. 


Be an Open Water Instructor or equivalent.
Be an Enriched Air Nitrox Instructor or equivalent.
Be a Deep Diving Instructor or equivalent.
Be a Diver Stress and Rescue Instructor or equivalent.
Be a Science of Diving Instructor - The Science of Diving Instructor program may be completed in conjunction with the Cavern Diving Instructor Training Course.
Hold a Cavern Diving certification or higher.


Day One

Standards Overview, Theory, Teaching Cavern Diving, Equipment Workshop

Day Two

Cavern Diving Skills Circuit, Teaching Cavern Diving in Confined, Water Skills Evaluation and Rescue Scenario

Day Three

Teaching Cavern Diving in Overhead Environment and XR Cavern Diving Instructor Exam

Included / Excluded

Sidemount equipment rental(if already certified sidemount instructor), stage tank, redundant regulator system, specialized cavern diving equipment and dives

Personal diving equipment is not included but can be rented for 500 THB for the duration of the course.

Dive computer is not included but can be rented for 500 THB for the duration of the course.

SSI Professional Fees are not included, they are paid directly to SSI

Price and Booking

17000 THB.

If you want to book the course or have any questions please contact us on

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