TDI Full Cave Diver


TDI Full Cave Diver

This course is the 3rd level of training in TDI’s Cave Diver development program. Advanced cave diving planning and execution of different types of cave diving scenarios divers may encounter are introduced.


To find out what it takes to become a TDI Full Cave Diver please visit the link:

What Does it take to become a Full Cave Diver?


The goal of this course is to expand previous skills learnt in the TDI Cavern Diver and Intro to Cave Diving programs. Emphasis in dive planning and skill perfection through actual complex navigation dives and cave penetration.




SKU: TDI Full Cave Diver Categories: ,


What is the TDI Full Cave Diver Course?

The Full Cave Diver course is for divers interested in continuing with their education in overhead environments diving, expanding their diving techniques and capabilities. This is the third course of the series where divers learn to deal with complex navigation dives, restrictions, and all the previously learnt skills are fine tuned.

Why is Divers UnderGround the best TDI dive center to do your Cave Diver course?

At Divers UnderGround we believe that Cave Diving and Technical Diving in general is a sport that has to be taken seriously. Yes, it is fun and is very enjoyable but we have to remember, we are getting into one of human’s most inhospitable places on earth. We need to foresee and be prepared  to deal with any situation we may encounter and even more we need to learn how to avoid getting into dangerous situations. Once you are a certified cave diver you will be ready to go cave diving without the supervision of an instructor, but is not the certification card that keeps you safe, is your ability to properly plan and execute safe cave dives and we make sure you are ready to do just that when we sign that certification card. During training you will encounter almost all possible scenarios and every scenario is treated as the worst case. By training in this way, divers are prepared to confront any situation in the cave with the confidence necessary to always come out of the dives unhurt.

Course structure:

Water Execution:

Eight Cave Dives are required at three different sites in and at least 6 different caves

For divers entering the program without Caver Diver and Intro to Cave certifications, 16 dives are required.


The course must be taught in no less than 5 days.

When combined with Cavern and Intro to Cave a minimum  of eight days are required.

Qualifications of graduates:

Penetration using the rule of thirds conservatively.

Diving within a maximum depth of 40 Metres / 130 feet.

No equipment removal in the cave.

Proper guideline following procedures.

Proper use of cave diving gear.

Cave Diving within the no decompression limits unless properly trained.

Complex navigation dives planning and execution.

Course Prerequisites:

Minimum age 18.

Certified as TDI Intro to Cave or equivalent.

TDI Full Cave Diver Course
Photo: Camilo Garcia - Diver: Gin Tong
Razor Sidemount Cave Instructor
Photo: Robert Standsfield - Diver: Geraldine Solignac

What am I trained to do as a Full Cave Diver?

After successful completion of the course, divers may plan and execute dives without supervision adhering to the following limits:

Diving activities approximate to those of training.

Plan dives not to exceed your level of comfort and training.

Plan dives conservatively using the rule of thirds.

Cave diving within a maximum depth of 40 meters / 130 feet unless properly trained to go deeper.

Always maintain a continuous guideline.

Use proper Cave Diving equipment.

Some of the skills you will learn and/or practice during the course include:

Proper deployment of guidelines

Use of directional and nondirectional line markers

Following a guideline with eyes open and closed (simulating loss of visibility)

Gas sharing with eyes open while following the guideline

Air share with lights off and eyes closed using touch contact communication and following the guideline

Remove and replace mask keeping contact with the guideline

Conservation, awareness and back referencing techniques

Light/hand signals and touch contact communication

Anti-silting and propulsion techniques

Primary light failure simulation and proper deployment of backup lights  to exit the cave

Lost diver protocols and line recovery procedures

Proper use of spools and reels to perform jumps and gaps

Perfect buoyancy control and trim

Proper stress analysis (detection and management)

Gear matching

Adequate pre dive planning

Awareness and respect for the environment

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