CAVERN DIVER CERTIFICATE

The Technical Diving International (TDI) Full Cave Diver program consists of three sections: Cavern Diver, Intro to Cave, and Full Cave Diver.

This Cavern Diver course is designed to develop the minimum skills and knowledge for cavern and overhead environment diving within the limits of light penetration; in addition outlines specific hazards associated with cave diving. The cavern diver course in not intended to provide instruction for cave diving environments. The objective of this course is to train divers in the proper planning, procedures, techniques and hazards of cavern diving.

Prerequisites

Minimum age 18, (15 with parental consent)
Provide proof of an Open Water Diver certification
Minimum of 25 logged dives

Course structure and duration

4 cavern dives conducted at 2 different sites
Course must be conducted over a minimum of 3 days (2 days if combined with Intro to Cave)

Qualification limits

Daylight zone, i.e. within natural light of the cavern entrance
Penetration is limited to 1/3 of a single diving cylinder or 1/6th if using double cylinders
61 linear metres / 200 linear feet from the surface
40 metres / 130 feet maximum depth
No decompression diving
No restrictions; no areas too small for 2 divers to pass side-by-side
Safety stops as appropriate or necessary
Maintain a continuous guideline
Proper cavern diving equipment is used
No removal of life support equipment within the overhead environment

Required equipment

Double cylinders, (two single cylinders for Sidemount certified students) limited to the 1/6 air rule
Two regulators with pressure gauge and alternate air source on a 2 metres / 7 feet hose
Buoyancy compensator device (BCD) with power inflator
Exposure suit adequate for cavern environment (minimum 5mm with hood)
Mask and fins, NO snorkel
Two line cutting devices
Safety reel with a minimum of 37 metres / 125 feet of guideline
One primary reel
One primary and two back up lights
Two dive computers or one computer and a bottom timer and depth gauge
Wrist slate and pencil
Three directional line arrows and three non directional line markers

Required skill performance and graduation criteria

Adequate pre-dive planning
Equipment check and equipment matching
Bubble checks
Specialized propulsion techniques
Proper buoyancy control
Proper body posture (Trim)
Proper stress analysis (detection and management)
Properly deploy and follow a guideline with eyes open and closed; simulating loss of visibility
Air share with a buddy with eyes open, following the guideline
Air share with a buddy with eyes closed using touch contact communication while following the guideline
Remove and replace mask while in contact with guideline
Demonstrate light / hand -signals and touch contact
Proper use of directional and non directional markers
Use of safety reel in lost diver procedures
Use of safety reel in lost line drill

How do I confirm pricing and booking?

See all Services

Home

Contact