TDI Technical Diving Courses

TDI course chart

TDI Enriched Air NITROX Diver Course

Why TDI Nitrox course?

This is the entry level certification course for recreational divers wishing to utilise enriched air Nitrox (EAN) as a breathing gas. The objective of this course is to train divers in the benefits, hazards, and proper procedures for using Nitrox mixes from 22% to 40% oxygen content.

What do I need to start?

  • Minimum age: 15 years
  • Minimum certification of Diver or current enrollment in a diver course
  • Minimum of 10 logged dives, or the Nitrox program may be taught in conjunction with an open water diver certification

How long will it take?

  • 2 Nitrox dives over one day.

TDI Advanced NITROX Course

Why TDI Advanced Nitrox course?

This course examines the use of EAN-21 through 100% Oxygen for optimal mixes to a depth of 40 m. The objective of this course is to train divers in the benefits, hazards and proper procedures for utilising EAN-21 through 100 % oxygen for dives not requiring staged decompression (decompression techniques may be combined with this course).

What do I need to start?

  • Minimum age: 15 years
  • Have a minimum certification of TDI Nitrox Diver (or equivalent)
  • Show poof of 25 logged open water dives
  • If this course is taught in conjunction with the TDI Decompression Procedures Course, then the minimum age is 18

How long will it take?

  • Four dives are required with a minimum accumulated bottom time of 100 minutes.
  • If Advanced Nitrox is taught in conjunction with Decompression Procedures only a total of six dives are required.

TDI Decompression Procedures Course

Why TDI Decompression Procedures course?

This course examines the theory, methods and procedures of planned stage decompression diving. This program is designed as a stand-alone course or it may be taught in conjunction with such TDI courses as Advanced Nitrox, Advanced Wreck, or Extended Range. The objective of this course is to train divers how to plan and conduct a standard staged decompression dive not exceeding a maximum depth of 45 m unless taught in conjunction with the Extended Range Course. The most common equipment requirements, gear set-up, and decompression techniques are presented. Students are permitted to utilise Nitrox mixes or O2 for decompression if the mix is within their current certification level.

What do I need to start?

  • Minimum age: 18 years
  • Minimum certification of diver
  • Minimum of 25 open water dives

How long will it take?

  • Two days with four decompression dives (minimum accumulated bottom time of 100 minutes)

TDI Extended Range Diver Course

Why TDI 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 55 m and utilising Nitrox mixtures or oxygen for staged decompression. This course is also a prerequisite for the TDI Advanced Trimix Gas Course.

What do I need to start?

  • Minimum age: 18 years
  • Minimum of 100 logged dives (25 be deeper than 30 m)
  • TDI Advanced Nitrox Diver and TDI 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.

TDI Entry-level Trimix Diver Course

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.

TDI Advanced Trimix Diver Course

Why TDI Advanced Trimix Diver course?

The TDI 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
  • Extended Range Diver or 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.

TDI Air Diluent Closed Circuit Rebreather Diver Course

Why TDI Air Diluent Closed Circuit Rebreather Diver course?

This is the entry level certification course for divers wishing to utilize a closed circuit rebreather (CCR) for air diving. The objective of the course is to train divers in the benefits, hazards and proper procedures for diving a CCR and to develop basic CCR diving skills to a maximum depth of 30 metres / 100 feet / using air as a diluent. No decompression diving is allowed on this course.

What do I need to start?

  • Minimum age 18
  • Provide proof of 20 logged open water dives
  • Provide proof as a TDI Nitrox Diver or equivalent
  • Note: Nitrox diver may be combined with this course

How long will it take?

  • 6 days - a Minimum of 60 minutes confined water training and a Minimum of 420 minutes open water training to be completed over a minimum of 7 dives with a gradual increase in depth each day to a maximum of 30 metres/100 feet.

TDI Air Diluent Closed Circuit Rebreather Decompression Procedures Diver Course

Why TDI Air Diluent Closed Circuit Rebreather Decompression Procedures Diver course?

This is the second level certification course for divers wishing to utilize a closed circuit rebreather (CCR) for air diving. The objective of the course is to train divers in the benefits, hazards and proper procedures for diving a CCR and to develop basic CCR diving skills to a maximum depth of 45 metres / 150 feet using an air diluent for formal decompression diving.

What do I need to start?

  • Minimum age 18
  • Provide proof of 50 logged dives
  • Provide proof of TDI Advanced Nitrox Diver and Deco Procedures Diver or equivalent from agencies recognized by TDI

or

  • Minimum age 18
  • TDI Air Diluent CCR Diver certified or equivalent
  • 30 hours on the CCR unit
  • Six months CCR diving experience

How long will it take?

  • 6 days - a Minimum of 60 minutes confined water training and a Minimum of 420 minutes open water training to be completed over a minimum of 7 dives with a gradual increase in depth each day to a maximum of 45 metres/100 feet.

TDI Mixed Gas Closed Circuit Rebreather Diver Course

Why TDI Mixed Gas Closed Circuit Rebreather Diver course?

This is the intermediate level certification course for divers wishing to utilize a closed circuit rebreather (CCR) for mixed gas diving. The objective of the course is to train divers in the benefits, hazards and proper procedures for mixed gas diving on the unit specific CCR, utilizing a mixed gas diluent containing 16 percent or greater oxygen, and to develop intermediate CCR diving skills appropriate to technical diving to a maximum depth of 60 metres/200 feet.

What do I need to start?

  • Minimum age 18
  • Provide a verified log of a minimum of 50 rebreather hours distributed over a minimum of 50 dives on the specific rebreather; 50 percent deeper than 20 metres / 66 feet. All must be deeper than 9 metres/20 feet

How long will it take?

  • 6 days - Minimum of 360 minutes open water training to be completed over a minimum of 6 dives with a gradual increase in depth each day to a maximum of 60 metres/200 feet.

TDI Advanced Mixed Gas Closed Circuit Rebreather Diver Course

Why TDI Advanced Mixed Gas Closed Circuit Rebreather Diver course?

This is the highest level certification course for divers wishing to utilize the unit specific closed circuit rebreather (CCR) for advanced mixed gas diving. The objective of the course is to train divers in the benefits, hazards and proper procedures for advanced mixed gas diving on a CCR and to develop advanced CCR diving skills appropriate to technical diving to a maximum depth of 100 metres/330 feet.

What do I need to start?

  • Minimum age 18
  • Have successfully completed the unit specific TDI CCR Air Diluent Decompression Procedures diver course, or equivalent
  • Have a verified log of a minimum of 100 CCR hours distributed over a minimum of 100 dives

How long will it take?

  • 6 days - Minimum of 420 minutes open water training to be completed over a minimum of 7 dives.

TDI Nitrox Gas Blender Course

Why TDI Nitrox Gas Blender course?

The objective of this course is to train candidates in the proper techniques, equipment requirements and hazards involved in blending Nitrox gases for recreational scuba.

What do I need to start?

  • Minimum age: 18 years

How long will it take?

  • One day (classroom and practical application).

TDI Advanced Gas Blender Course

Why TDI Advanced Gas Blender course?

The objective of this course is to train candidates in the proper procedures needed for the preparation and blending of high quality gases (any kind of mix).

What do I need to start?

  • Minimum age: 18 years
  • TDI Nitrox Diver or equivalent
  • TDI Nitrox Gas Blender

How long will it take?

  • One day (classroom and practical application).

TDI Helitrox Diver Course

Why TDI Helitrox Diver course?

The TDI Helitrox Diver course examines the theory, methods, and procedures for planning staged decompression dives utilizing helium in the breathing mixture.

The objective of this course is to train divers how to plan and conduct a standard staged decompression dive not exceeding a maximum depth of 45 metres / 150 feet. The most common equipment requirements, gear set-up, and decompression techniques are presented during the TDI Helitrox Diver course. Students are permitted to utilize Enriched Air Nitrox and Helium mixes with no greater than 20% helium content, and up to 100% oxygen for decompression diving.

What do I need to start?

  • Minimum of 18 years of age
  • Eanx Diver
  • Minimum Advanced Diver certification
  • Minimum of 25 open water dives

How long will it take?

  • Three days with four decompression dives (minimum accumulated bottom time of 100 minutes).

This program is designed as a stand-alone course or it may be taught in conjunction with TDI Advanced Nitrox at the discretion of the instructor.