TDI Cavern Diver Course

Prerequisites:

• Minimum age: 18 years (15 with parental consent)
• SDI Open Water Scuba Diver certification or equivalent
• 25 logged open water dives.
• SDI Deep Diver certification or demonstrable deep diving experience if dives exceed 18 meters during the course.

Once certified, you will be able to:

• Participate in cavern dives without direct supervision, while adhering to training limits.
• Dive exclusively within the natural light zone.
• Limit penetration to one-third of the available gas.
• Maintain a maximum penetration of 61 linear meters from the surface.
• Dive to a maximum depth of 40 meters, no-decompression.
• Use a continuous guideline and cavern-specific equipment.
• Enroll in the TDI Intro to Cave course.

What you will learn:

• Cavern diving policies and rules.
• Gas management procedures.
• Psychological considerations and stress management.
• Cavern-specific equipment setup.
• Underwater communication: hand signals, light signals, and touch signals.
• Trim, buoyancy, line-following, and specialized propulsion techniques.
• Stress control.
• Cavern environment.
• Cavern conservation and etiquette.
• Emergency procedures and problem-solving.

Practical skills:

• Proper deployment and following of the guideline.
• Line-following in low-visibility conditions.
• Air sharing along the guideline using visual and touch contact.
• Removing and replacing the mask while maintaining reference to the guideline.
• Use of hand, light, and touch signals.
• Anti-silt propulsion techniques.
• Primary light failure management and backup light deployment.
• Precise buoyancy control, horizontal trim, and stress assessment.
• Exploration within natural light limits while maintaining continuous reference.

Course Duration and Price:

• This course has a duration of 4 full days.