Tec 50 Trimix

Start pushing boundaries

Diving the Japanese M-24 Submarine, Sydney PC: Liam Allen

The Tec 50 Trimix course is the next step in your Technical diving journey and where it really starts to get exciting. Build on all the experience and skills you gained during Tec 40 and Tec 45 Trimix to become a fully-fledged Technical diver capable of deep challenging dives up to 50m using two decompression gases and Trimix.

Course outcomes

  • Plan and execute Trimix dives to 50m
  • Learn to handle and use two stage decompression cylinders
  • Start to use pure oxygen as a decompression gas to allow you to accelerate your decompression times and therefore increase your bottom times
  • Open up most of the Sydney wreck dives which lie in the 50m range
  • Lay the foundations for Tec 65 Trimix

The course consists a mix of shallow and deep dives, including 3 decompression Trimix dives, theory and dive planning.


  • Tec 45 Trimix or Tec 45 equivalent
  • GUE Fundamentals (Rec pass)
  • PADI Rescue Diver
  • Minimum 100 logged dives

Cost $1595

Includes: PADI Trimix manual, Tec planning slates, helium fills, decompression gases
Excludes: Equipment

Commencing this course students are required to have all their own equipment with the exception of a second stage tank and reg which can be rented for $50 for the course.

Prior to the course please consult us to discuss any equipment needs or if you have any questions about the suitability of your setup.

Interested? Get in touch for more information

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