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Altona Vitoria 3018


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TDI Trimix Diver Course

Are you looking to expand your depth range? Do you want to reduce narcosis during deep dives? The TDI Trimix Diver Course could be your next step! As your motivation to explore progresses, you will find that you may want to go deeper to dive that wreck that is part of history or that cave system that you have read so much about. One of the major limiting factors of going deeper is narcosis; TDI’s Trimix Diver course shows how to minimize the effects of narcosis by adding helium to offset the nitrogen in your breathing gas. While taking the Trimix Diver course your TDI Instructor will teach you how to plan and execute dives utilizing as little as 18 percent oxygen and diving to maximum depth of 60 metres with a blend of helium appropriate for the planned depth.


Pre Requisites

  • Minimum age 18
  • Minimum certification of TDI Advanced Nitrox AND Decompression Procedures Diver, or equivalent
  • Proof of 100 logged dives


Course Structure

Evening Session: Theory, Equipment Session and Dive Planning

Day 1: Confined Water Session

Day 2: Dives 1 & 2

Day 3: Dive 3

Day 4: Dive 4



Course Pricing

Training and Instructor Fees $1399


*Personal gas and boat dives additional


Course Booking Information

For course booking information, including our rescheduling policy, please click here.