Why TDI Entry-level Trimix Diver course?
The TDI 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
  • TDI 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.
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