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TDI Courses

Extended Range Diver Course

The objective of this course is to train divers in the proper techniques, equipment requirements, and hazards of deep air diving to a maximum of 50 m and utilising Nitrox mixtures or oxygen for staged decompression. This course is also a prerequisite for the Mixed Gas Trimix Gas Course.

What do I need to start?

  • Minimum age: 18 years
  • Minimum of 100 logged dives (25 be deeper than 30 m)
  • Advanced Nitrox Diver and Decompression Procedures Diver or equivalents

How long will it take?

Four days with six open water dives (minimum accumulated bottom time of 100 minutes). All dives must be deeper than 30m with four dives deeper than 40m.


Entry-level Trimix Diver Course

The Entry Level Trimix Course provides the training required to competently and safely utilise breathing gases containing helium for dives that require staged decompression, utilising Nitrox or oxygen mixtures during decompression to a maximum depth of 60m. The objective of this course is to train divers in the benefits, hazards and proper procedures of utilising custom O2/He/N2 mixtures as breathing gases.

What do I need to start?

  • Minimum age: 18 years
  • Advanced Nitrox Diver and Decompression Procedures Diver or equivalent
  • Minimum of 100 logged dives

How long will it take?

Three days with four open water dives with a minimum accumulated bottom time of 100 minutes, with at least two dives deeper than 40 m.

Advanced Trimix Diver Course

The Advanced Trimix Course provides the training required to competently and safely utilise breathing gases containing helium for dives that require staged decompression, utilising Nitrox and/or oxygen mixtures during decompression to a maximum depth of 100m. The objective of this course is to train divers in the benefits, hazards and proper procedures of utilising custom O2/He/N2 mixtures as breathing gases.

What do I need to start?

  • Minimum age: 18 years
  • Entry Level Trimix Diver or equivalent
  • Show proof a minimum of 100 logged dives with 25 deeper than 30 meters
  • Prior logged experience w/ double cylinders and any other unfamiliar equipment

How long will it take?

Four days with four dives (minimum accumulated bottom time of 100 minutes). At least two dives should be deeper than 55m

For information on Rebreather Trimix Courses CLICK HERE.