Tag Archives: TDI

Decompression Procedures Diver

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The decompression procedures course is an exciting step further into your dive career.

Decompression ProceduresYou can train in your properly configured recreational gear with just an extra stage for the deco gas. You will only need and extra regulator and stage rig and you can still join regular dive operation which is a great advantage.

If you already are an Intro to tech or Sidemount diver you can use this configuration with an extra deco tank.

You will get the best out of this training if you already are an Advanced Nitrox diver or if you combine Decompression Procedures and  Advanced Nitrox.

These courses will be the foundation of all other technical courses.

Objectives of the Decompression Procedures Course
  • Extend your bottom time
  • Safely execute decompression dives
  • Dive deeper
  • Look deeper into the decompression theory
  • Extend your diving techniques
Duration
  • 3 days minimum
  • Dives: 4 dives minimum (including 2 below 30 metres / 100 feet)
  • Adv. Nitrox + Deco Procedures: 6 dives minimum
Limits
  • Depth: 45 metres/150 feet.
Course prerequisites
  • Minimum age 18
  • Minimum certification of SDI Advanced Adventure Diver, Advanced Diver, or equivalent
  • 25 logged open water dives
Equipement
  • Primary cylinder(s), Independent or isolated back-mounted
  • Decompression mix cylinder(s) (with submersible pressure gauge and Labeled)
  • Depth gauge and bottom timer and / or dive computer
  • Regulator(s)
  • Buoyancy compensator device(s) (BCD) adequate for equipment configuration
  • Line cutting device
  • Ascent reel with lift bag /surface marker buoy
  • Oxygen (O2) analyzer; may be supplied by the instructor
  • Exposure suit adequate for the open water environment
  • Underwater slate
What will you learn?
  • Choosing the Decompression gas
  • The use of dive Tables and personal dive computers
  • How to set Emergency and contingency plans  (in order to face equipment failure, omitted decompression, etc.)
  • Decompression diving procedures
  • Choosing the equipment and configuration
  • Pre-dive checks and drills
  • Stress analysis and mitigation
  • Following a decompression schedule
  • Gas switching
  • Team awareness and communication
  • SMB/lift bag deployment
  • Proper trim, buoyancy and finning techniques
  • Emergency procedures (in case of equipment failures, catastrophic gas loss, omitted decompression, navigational errors, etc.)
  • Equipment considerations, cylinder labeling, analyzing nitrox mixtures, and gas blending procedures
 What’s next?

Nitrox     Advanced Nitrox     Extended Range     Trimix

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Intro to Cave Diver Course

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Intro to Cave Diver Course
Deploying a guideline

After enjoying your cavern diving course and discovering diving in overhead environment it is now time to move on to the Intro to cave diver course.

Not only you will tune up your skills further into the cave but you  will adopt additional techniques and procedures required for simple cave dives.

Of course, upon satisfying with the intro to Cave course requirements you may enroll to the Full Cave Diving Course.

Prerequisites
  • Cavern Diver certification or equivalent
  • Minimum age 18, 15 with parental consent
Qualifications
  •  “Rule of thirds,” OR 1/6th if using doubles
  • Maximum depth of 40 metres/130 feet.
  • Proper cave diving equipment must be used
  • Maintain a continuous guideline
  • Progress on to the next level: Full Cave Diver course!
Gears
  • double cylinders or dual valve manifold
  • Two independent first and second stage regulators; one regulator equipped with a long hose (2 metres / 7 feet)
  • Buoyancy compensator device (BCD) with power inflator
  • Exposure suit adequate for diving environment
  • Line cutting device
  • Three battery powered lights; 1 primary and 2 back-ups
  • Safety reel/spool
  • One primary reel
  • Computer, watch or bottom timer and depth gauge
  • Slate or wet notes with a pencil
  • Submersible dive tables or backup dive computer
  • Directional and non directional line markers
Duration
  • Minimum 3 days
  • Open water training
  • minimum 4 cave dives
  • Theory: minimum 4 hours
What you will learn
  • Policy for cave diving
  • Gas management
  • Psychological considerations of cave diving
  • Equipment choice and configuration
  • Communication (light and hand signals, touch contact)
  • Swimming techniques
    • Body posture/trim
    • Buoyancy control
    • Line following
  • Physiology
    • Breathing techniques
    • Stress management
  • Cave environment
  • Cave conservation
  • Problem solving
    • Emergency procedures
    • Equipment failure
    • Silting conditions
  • Accident analysis
  • Cave diving etiquette

 

CAVERN     FULL CAVE

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Cavern Diver Course

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First step in the Overhead Environnment during the TDI Cavern diver course - Cenote Carwash (Actun Ha) Tulum - Mexico

The cavern diver course is your first step in overhead environment diving. Through this course, you will build up the skills to dive safely within the natural daylight and a short distance from the exit. Not only you will learn about proper planning, procedures and techniques for cavern diving but also about the hazards and how to deal with them. And of course, you will now enjoy your cavern diving in the Cenotes to a much higher level of knowledge and safety.

The cavern diver course is the first part of the Cave course. After your training you will know what to expect and decide if you keep going.

Duration
  • Minimum of 3 days
  • Open water training
  • Minimum 4 cavern dives
  • Theory: minimum 6 hours
Gear

This course will definitely take you a step further in your diver’s life. Once certified as a cavern diver you might of course consider following your training with the Intro to cave or even all the way to Full cave training.

Course prerequisites
  • Minimum age 18, 15 with parental consent
  • Open Water Scuba Diver
  • Proof of 25 logged dives
Qualifications
  • Daylight zone
  • Penetration is limited to 1/3 of a single diving cylinder or 1/6th if using double cylinders
  • 61 linear metres / 200 linear feet from the surface
  • 40 metres / 130 feet maximum depth
  • No decompression diving
  • No restrictions
  • Maintain a continuous guideline
  • Qualified to enroll in: Introductory Cave course
What you will learn during the Cavern diver course
  • Policy for cavern diving
  • Gas management procedures
  • Psychological considerations of cavern diving
  • Equipment considerations
  • Communication (light and hand signals, touch contact)
  • Body posture/trim
  • Buoyancy control
  • GuideLine use (deploy, follow with eyes opened and  closed)
  • Propulsion and anti-silting techniques
  • Physiology
  • Cavern environment and conservation
  • Problem solving
    • Emergency procedures (Air share, light failure…)
    • Equipment failure
    • Silting conditions
  • Accident analysis
  • Predive planning

Upon successful completion of this course, graduates may engage in Intro to Cave training

Side Mount     Intro to Tech     Intro to Cave

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