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TDI ADVANCED WRECK DIVER Learn advanced wreck penetration techniques

TDI Advanced Wreck Diver with Tech Asia

The TDI Advanced Wreck Course will guide you through the valuable and thought provoking drills and skill set needed to perform advanced level wreck penetration dives. We normally teach this course on the wrecks in the former US Naval Base in Subic bay.

What Will Advanced Wreck Diver allow you to do?

What is it like to view the massive engines and boiler rooms of a warship built over a hundred years ago? Or peer into crews quarters containing personal artifacts evidencing life at sea  during WWII, lying undisturbed and in silence all this time, possibly you being the first person to ever see these things since the ship sank? These experiences can be yours, from training dives on such famous vessels such as the USS New York in Subic, to exotic trips visiting wrecks like the aircraft carrier HMS Hermes lying almost untouched off the Sri Lankan coast.  Combined with your technical training, this course will take you far...


  • Must be at least 18 years of age.
  • Proof of 50 logged dives.
  • Minimum certification of SDI Advanced Open Water Diver or equivalent.
  • Certified TDI Wreck Diver or TDI Cavern Diver or equivalent.

Please Note : This course is generally aimed at technical divers having at a minimum, Advanced Nitrox & Decompression Procedures or equivalent, who are sufficiently comfortable with tech diving equipment and procedures to be able to go forwards and learn new skills in the overhead environment. Preparedness is therefore best discussed with our instructors.

Program Content and Limits

  • Max. Depth 55m/180ft or the maximum depth to which the student is certified, whichever is the shallower.
  • The course contains dry simulations and confined water training working on basic skills, line laying technique, communications, touch contact and emergency procedures etc.
  • At least six penetration dives, with a minimum 100 minutes of overhead environment time (typically 300-400 minutes in the wrecks )
  • Decompression and bottom gases are limited to the previous certification of the student.


What You Will Learn

Diving inside of something creates a very different feeling to the soft 'ceiling' that you are more used to when making an open water decompression dive. Once inside a wreck and out of the daylight zone, there is generally no way back to the fresh air on the surface other than the way you went in. Learning to work with guidelines so that they will get you and everybody with you back to safety even if you can't see anything, is a fascinating and satisfying experience.

During TDI Advanced Wreck Diver, we aim to give you a solid base from which to grow your capabilities, and will cover such topics as : 

  • Equipment set up and streamlining, line, spools and reels.
  • Light and hand signals.
  • Intro to line skills in a simulated wreck.
  • Simulated night dive, lights and hand signals only.
  • Missing diver, lost line protocols and touch contact.
  • Gas shares through restrictions, gaps and cut line.
  • Gas matching, gas management, stress management, lost line drills ( silt outs ), anti silting techniques.

Note: As with other TDI programs, the diver must complete and pass the written examination, complete all in water requirements efficiently and safely, and demonstrate mature and sound judgement in dive planning and execution in order to be certified.

Equipment, Materials, What's included?

The TDI Advanced Trimix course is normally taught in double tanks although Sidemount can be used by those already certified.  Only one decompression tank is used in most cases. 

You will find details of what is included and not included across all TDI courses on the Overview page, however since this course is taught outside of Puerto Galera some additional costs are involved, such as equipmental rental (except tanks), a share of instructor transportation costs to and from the course location, and diving costs at the dive center we will use.  There is also a single person supplement if the course is to be taught for only one student. All of this varies depending on numbers involved but typically adds up to $250-300/Php12,000-15,000 per person for the course.

Student Equipment required includes backplate and wing and regulators suitable for double tanks and one decompression tank, primary reel (within the team) and two spools each, primary light and two back ups, SMB, notebook, cutting device and normal personal diving gear.

At the moment, only a printed manual is available for this course, there is no eLearning option available.