Gas Blender program
ADV Wreck Penetration
Waikato bow gun (click on picture for more images)
ADVANCED Wreck Diver
SO...... you have dived a few wrecks in your time,
maybe entered and swam around a few times. But something has made you
want to go further inside, venture round that corner, see what mysteries
unfold!!!! well now you can do just that - SAFELY
The TDI Advanced wreck penetration course is
designed to advance a divers skills to be able to plan and execute full
penetrations into wrecks beyond the natural light zone. The program will
also go into gear needs, advanced dive planning, gas management, team
management, researching wrecks and mapping them. Depths shall not exceed
the level in which the diver is trained and competent,
$1200.00 for training, including cert fees and
does not include boat costings diving the Waikato
(budget for $120 for two dive days - will need 3 days diving)
contact Pete on
Qualifications of Graduates
Upon successful completion of this course, graduates may engage in wreck
diving activities without direct supervision so long as:
1. The diving activities approximate those of training.
2. The areas of activities approximate those of training.
3. Environmental conditions approximate those of training.
Student – Instructor Ratio
Open Water (Ocean, lake, quarry, spring, river or estuary):
1. A maximum of four (4) students per Instructor. However, it is the
instructor’s discretion to reduce this number as conditions dictate.
(2;1 for wreck penetration)
The student must:
1. Be a minimum age of eighteen (18).
2. Be certified as a Rescue diver.
3. Show proof of at least fifty (50) logged dives.
4. Be certified as Basic Wreck or Cavern or equivalent.
Course Structure and Duration
Open Water Execution:
1. Six penetration / overhead dives and an accumulated bottom time of
one hundred minutes.
2. Only two (2) dives from Advanced Wreck course may be credited towards
the total dives required for Advanced Nitrox, Decompression Procedures,
Extended Range or Entry Level Trimix.
- TDI allows instructors to structure courses according to the number
of students participating and their skill level.
- Duration:The minimum number of classroom and briefing hours is eight (8).
The following equipment is required for each student
- Primary Cylinder(s)
- Cylinder volume appropriate for the planned dive and student gas
- Dual valve, double manifold or independent doubles.
- Labeled in accordance with TDI Standards.
2. Travel or Decompression
Cylinders as required by site conditions.
- Primary and primary redundant required on all primary breathing
- Submersible pressure gauges are required on all primary cylinder(s).
- A contingency use long hose second stage should be designated and
appropriately rigged to facilitate air sharing at depth if necessary.
4. Buoyancy Compensator adequate for the open water environment.
5. Back-up Depth and Timing Devices.
6. Air decompression computers allowed for use as depth and timing
7. Light Systems
8. Ascent reel with lift bag/surface marker buoy or up-line
- Adequate for the planned maximum depth.
- Minimum of 11 kg Lift.
9. Exposure suit adequate for the open water environment.
10. Two (2) Line Cutting Devices.
11. Underwater Slate.
- Primary penetration reel.
- Safety reel.
Theory/Practical Subject Areas
The following land drills must be covered during this course
- Guideline Use.
- Guideline Following.
- Emergency Procedures.
The following topic must be covered during this course. Instructors may
use any text or materials that they feel best presents these topics.
1. Equipment Considerations
- Redundant scuba.
- Exiting the wreck.
3. Hazards of Wreck Diving and Overhead
- Reduced visibility.
- Loss of gas supply.
- Line traps.
- Separated buddy teams.
4. Penetration Lines
5. Research and Locating
- Local regulations.
- Sources of information.
6. Contingency Planning
- Chamber locations.
- Emergency gases.
Required Skill Performance And Graduation Requirements
The student must complete the following skills during wreck dives. All
dives should be conducted with a maximum depth no deeper than the least
certified student’s capabilities.
Properly analyze all gas mixtures to be used.
- Demonstrate adequate pre-dive planning
A. Limits based on personal and team gas consumption.
B. Limits based on oxygen exposures at planned depths for actual
C. Limits based on nitrogen absorption at planned depths for actual
- Properly execute the planned dive within all
- Demonstrate the proper navigational techniques for the specific
- Demonstrate out of air sharing with long hose through a
- Demonstrate the proper procedures for switching and isolating a
- Demonstrate the proper techniques for locating a lost
- Deployment of lift bag or up line for decompression.
- Silt-out procedures.
- Follow line with eyes closed.
- Follow line while sharing air.
- Follow line with eyes closed while air sharing.
- In order to complete this course, students must:
1. Complete all field exercise and open water requirements safely
2. Demonstrate mature, sound judgment concerning dive planning and
WHO IS TAKING THE PROGRAM???
Pete Mesley, one of NZ's prominent wreck and
technical diving adventurers, has been actively wreck diving for
over 14 years now. With over 350 hours inside wrecks he really does
lead by experience. Come and enjoy the challenges of wreck
TDI Adv Trimix Instr, Adv Wreck instr, CCR instr,
PADI Course Director and DSAT Tech IT
Gas Blender program
- Be 18 years or older
- Be certified as a nitrox diver ( in any agency)
Depending on numbers but normally one -2 days
Course Cost: $495.00 (based on minimum of 2)