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TDI Advanced Nitrox Decompression Procedures Course

May 4 @ 9:00 am - June 30 @ 5:00 pm

TDI Advanced Nitrox Decompression Procedures Course

Join us for your TDI Advanced Nitrox Decompression Procedures Course and see how much more exciting it is when to be diving deeper, longer on bigger and better dive sites!

When it comces to technical diving, deep diving isn’t just setting a dive computer, seeing deco and calling yourself a tech diver, there is a lot that goes into becoming a technical diver, both mentally and physically.

Technical 1 Divers doing a Helitrox Dive on Dufferin Wall in Tobermory, Ontario

Through our TDI Advanced Nitrox Decompression Procedures Course classroom and watermanship teachings, you’ll learn what technical diving is, advanced decompression theory, dive planning, gas management, decompression gas planning, as well as tracking both CNS and Pulmonary Oxygen toxicity.

You’ll learn how to follow a decompression schedule, handle emergencies, contingencies, plan for over staying your dive plan and ensuring you have enough gas to safely get yourself back up to the surface.

Decompression is a course requiring sound thinking and judgement. Decompression divers cannot simply ascend when they have a problem.  All issues must be solved underwater, especially with a decompression ceiling above you.

Students will complete a series of eLearning and classroom sessions, as well as local diving shore dives, dive charters followed by a completion of open waters and certification dives in 1000 Islands with us as part of our Rockin’ Rockport Trips.

Starts May 4/5 2024


Naui Intro to Tech
50 logged dives
Physically Fit
Must be able to swim 400 meters <10 mins.
Breath swim hold 50′


This course is available privately for individuals or groups as well either locally or wherever you are located.

Your training will include a minimum of 7 dives (on air/nitrox not exceeding 130′) or 11 dives (with Helitrox not exceeding 170′) including planning and executing staged decompression dives conducted over a 4-7 day period.

Training Agency:


Additional Details:

Technical Decompression dives will be conducted on air/nitrox to a maximum depth of 40 meters/130 feet, or up to 150′ for those divers wishing to participate in the Helitrox Diver upgrade.

Divers can benefit from a clearer head, due to reduced narcosis and CO2 loading, maximizing gas elimination  gradients and hyperoxic decompression.

This course is your first step beyond the normal recreational sport diving limits.

This course introduces the prospective technical diver to many essential skills which will become instinct in a real technical diving environment. Some examples include: Emergency procedures and Failure drills, Gas Management, Bail out and Contingencies, Proper buoyancy and Fin Technique introduced during your Into to Tech Course, proper gas switches not exceeding MOD and more.

The Prospective Technical Diver must have the proper mind set and educational background and experience level to become a SAFE technical diver. Remembering that the technical diver cannot just simply surface in an emergency situation.

If you’re interested in this program a CD is available upon request with a wealth of information

Students will be expected to have maintained their skills at a level of at least NAUI Intro To Tech prior to the Start of this intensive training process or above.

Students will have to show up ready to dive properly and dive well or you will not pass this course.  All foundation skills must be completed with proper trim, buoyancy, time requirements and in the right gear configuration.

Cost:  1 Person $1500.  2 People $1200.  3-4 People $799+HST TDI Advanced Nitrox/Deco or $1 Person $1800, 2 people $1500, 3-4 people 1199+HST for TDI Advanced Nitrox/Decompression Procedures with NAUI Helitrox Diver (Hyperoxic Trimix >170′).  Course cost includes Certification Fee, Student Materials, online TDI eLearning code or NAUI Student Materials.

Accommodations, Park Entrance Fees, Gas Fills, Transportation and Dive Charter Fees are Extra.

What gear will you need?

You’ll need a Technical Diver setup with double tanks, decompression bottle (properly rigged with MOD).  Gear is to be Simple and Streamlined, complying with equipment configuration requirements.  A full gear list will be given to all candidates.

Where do I go from here?

Here are some popular examples of courses commonly taken by graduates of this course:

  • Helitrox
  • Technical Wreck Penetration
  • Cave1
  • Cave 2
  • Trimix Level 1
  • Advanced Trimix
  • Extreme Exposure Trimix
  • CCR or pSCR Diver