CCR Full Cave course TDI 

CCR Full Cave Course TDI diver level development program utilising closed circuit rebreathers, manual or electronic. This CCR Cave Diver Level directly builds upon the CCR Intro Cave Diver course.

CCR full cave TDI course
Habitat in Song Hong lake

Advanced cave dive planning, the practical execution of different types of cave systems and scenarios divers encounter are presented.

Emphasis is placed upon dive planning and skill perfection through actual cave penetration. This course is conducted over 4 full days (full cave CCR can also be combined with the TDI CCR cavern and The TDI CCR intro cave course)

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


  • Policies for rebreather cavern diving
    Psychological considerations
    Equipment considerationsBailout cylinder options
    Rebreather configuration options
    Scrubber options
    Buoyancy compensator device (BCD) / harness options
    Reel options
    Proper weighting
    Equipment configurations
    CommunicationHand signals
    Light signals
    Touch contact signals
    Swimming techniquesBody posture / trim
    Buoyancy control and rebreather weighting
    Line following techniques
    Propulsion techniques
    PhysiologyBreathing techniques
    Stress management
    Cave environmentGeology
    Local access requirements
    Land owner relations
    Problem solvingEquipment failure
    Silting conditions
    Accident analysis
    Review of dive tables and decompression theory
    Cavern diving with Open Circuit (OC) diversBailout configuration requirements
    Out of gas emergencies
    Cavern diving etiquette

Student Prerequisites 

  • Be a minimum age of eighteen (18)
  • Show proof of a minimum certification of TDI CCR MOD II air diluent decompression Diver or equivalent.
  • Certified CCR Intro Cave diver or equivalent.


  • Be a minimum age of eighteen (18).
  • Hold Open Circuit Full Cave diver from a recognized agency.

Rebreather Units the CCR Full Cave course can be done on, are for example: Megalodon, JJ CCR, Inspiration CCR’s – Pathfinder, MKVI and Se7en, Revo or the Triton

During a mixed gas course you will need more Stage regs
Mask + Back-up maskBCD (wing) and harness
Depth gauge/trimix computer Timing device and backup timing device
Appropriate exposure suitKnife/cutting device and backup
Two inflatable signal tubesReel and spool
Slate and backup slateCompass
1 Stage bailout / decompression Regulators with SPG (Nitrox clean)1 Stage bailout / Decompression cylinder with suitable rigging to mount to the diver with appropriate gas
Factory supplied Closed Circuit Rebreather unit specificStorage pockets
Torch and Back-up torches (Trimix Diving, Wreck diving and cave diving courses)Hood - for Cave, Deep and Wreck Diving
Cave in France Ben Reymenants Cave Diving
Ben Reymenants Cave Diving on CCR
Wetmules habitat Song Hong