Rebreather Intro to Cave

Are you ready to pick up where you left off in the TDI Rebreather Cavern Diver Course? Are you looking to expand upon the skills developed in your previous overhead environment training? Sign up for the TDI Rebreather Intro to Cave Diver Course!This course introduces the basic principles of rebreather cave diving utilizing a single primary guide line. The TDI Rebreather Introductory Cave Diver is the second level in the development of safe techniques for rebreather cave diving, directly building upon the TDI Rebreather Cavern Diver Course. This introduction to cave diving is not intended to train divers for all facets of rebreather cave diving. The objective of this course is the perfection of skills taught in the TDI Rebreather Cavern Diver Program, in addition to the adoption of additional techniques and procedures required for elementary rebreather cave dives.


What you can expect to learn

The TDI Rebreather Intro to Cave Diver Course takes an in-depth look at all of the following and more:

  • Policies for rebreather cavern diving
  • Psychological considerations
  • Equipment considerations
    • Bailout cylinder options
    • Rebreather configuration options
    • Scrubber options
    • Buoyancy compensator device (BCD) / harness options
    • Reel options
    • Proper weighting
    • Equipment configurations
  • Communication
    • Hand signals
    • Light signals
    • Touch contact signals
  • Swimming techniques
    • Body posture / trim
    • Buoyancy control and rebreather weighting
    • Line following techniques
    • Propulsion techniques
  • Physiology
    • Breathing techniques
    • Stress management
  • Cave environment
    • Geology
    • Local access requirements
    • Land owner relations
  • Conservation
  • Problem solving
    • Equipment failure
    • Silting conditions
  • Accident analysis
  • Review of dive tables and decompression theory
  • Cavern diving with Open Circuit (OC) divers
    • Bailout configuration requirements
    • Out of gas emergencies
  • Cavern diving etiquette

Course Equipment Requirements

  • A complete TDI approved Rebreather
  • Minimum of 1 rebreather enabled computer or PO₂ monitoring device
  • Off board bailout cylinder(s) – volume appropriate for planned dive
  • Bailout regulator(s) equipped with pressure gauge and low pressure off board (quick connect) gas supply hose
  • Buoyancy compensator device (BCD) with power inflator
  • Exposure suit adequate for diving environment
  • Access to an oxygen analyzer (instructor may supply)
  • Mask and fins
  • Minimum of 2 cutting devices
  • Slate and pencil
  • Three battery powered lights; 1 primary and 2 back-ups, each with a with burn time suitable for the planned dive time
  • Safety reel with a minimum of 37 metres / 125 feet of guideline
  • One primary cave-diving reel with a length appropriate for intended dive
  • Computer, watch or bottom timer and depth gauge
  • Slate or wet notes with a pencil
  • Submersible dive tables or backup dive computer
  • Three directional line arrows

Course Prerequisites

  • Minimum age 18
  • Minimum certification requirement: TDI CCR Air Diluent Diver, or equivalent
  • Provide proof of certification as a:
    • TDI Rebreather Cavern Diver or equivalent

Want to know more?

Ask more questions or schedule any of these courses Email Us.