IDC Preparation is the key to a relaxed and successful PADI IDC with Indepth Dive Centre Phuket Thailand

Before you start your IDC Preparation you first you need to check that you meet the prerequisite requirements.

IDC Preparation checklist: to enter a PADI IDC, you must be:

  • Certified as a PADI Assistant Instructor, PADI Divemaster or as dive leader with another recreational diver training organization. 
  • At least 18 years old.
  • Fit for diving
  • Able to submit a Medical Form signed by a physician not longer than 12 months ago.
  • A certified diver of at least six months. And Logged at least 60 dives with experience in night, deep and navigation prior to beginning the Instructor Development Course. Have been a certified diver for at least 6 months & logged 100 dives prior to entering the PADI Instructor Examination.
  • Submit proof of CPR and First Aid training within the last 24 months. *

* We include an update for CPR / EFR training in the IDC Prep to cover out of date training. We can also arrange this update before or in conjunction with your IDC if required. Contact Chris for further scheduling for your IDC.

The next thing is to book your space on your Indepth PADI Instructor Development Course (IDC.)

When you are sure that you meet the requirements you will need to book your place on our IDC program.

When you have received confirmation that there is still space, you will then need to pay the PADI IDC Deposit. This can be done by via Pay Pal or Bank Transfer. Please contact us to find which payment method suits you best.

Once your space on has been blocked we will then book your complementary airport pick up and arrange accommodation for you. In addition, we will order your PADI & EFR materials, start organizing your IDC paperwork, IDC assignments and so on.

Please contact us ASAP to make sure that there is still space available on the IDC you are interested in!

The final thing for you to do is to start your IDC Preparation:

1. Make sure your PADI Instructor manual is up to date. You will need the past 12-18 months Training Bulletins.

If you are in any doubt, please contact Chris

If you are missing any you can download them from the PADI Pro section of

2. PLEASE make sure that you are confident with your level of Dive Theory knowledge BEFORE the IDC!

PLEASE NOTE: The PADI Divemaster Course was revised in 2010. The Dive Theory on the Divemaster Course is no longer the same as what is expected the IDC and IE!

Therefore, we believe that for IDC Preparation, our THREE DAY full-on IDC Prep is even more valuable. We have run our Indepth PADI IDC Prep for the past 15 years with huge success.

We include full staff presentations on all 5 Dive Theory Topics:
  • Physics
  • Physiology
  • Equipment
  • Decompression Theory and the RDP (Table & eRDPml)
  • General Skills and the Environment

In addition, we will give you two sets of Exams that we know you have not seen before.

In fact the best IDC preparation you can do starts before you arrive at Indepth. Dive Theory on-line is an excellent option available to you to help you prepare for the IDC Prep & IDC. Dive Theory online is all 5 Dive Theory Topics taught online complete with an Exam. In fact if you complete this online IDC Preparation, then it will in fact give you credit for the Dive Theory portion of the IDC.

The best way to prepare for your IDC and IE Dive Theory is The Encyclopaedia of Recreational Diving and Diving Knowledge Workbook. Get these and work your way through them. Please believe us when we say that you will have ample to keep you busy during the IDC. And that you will not want to be worry about dive theory questions such as Partial Pressures, M Values & Half-times, signs and symptoms of Mediastinal Emphysema etc.

You know when you have mastered something when you can not only get the correct answer. But also explain WHY each of the other answers is wrong!

During the IDC and IE, the written exams are available in over 20 languages. Should the exam not be available in your native language you will get extra time.

Please order exam papers in languages other than English in advance of the IE. If you think you might need language other than English then please let Chris know as early as possible.

3. Check what PADI materials you have ...

... and which you are missing. This is because you will not only need the following materials as an Instructor. But you will also be using them almost every day on the IDC and on the actual IE itself.

Next review all your PADI materials. Please read through the revised Open Water manual, the NEW Advanced Open Water manual and PADI Rescue Diver manual. It is surprising how much of the Dive Theory is in these manuals! You will also no doubt be surprised at not only how much information is in these manuals, but also how much you have forgotten! Do you remember what Offshore and Longshore Currents are for example? No? Turn to Chapter 3 of the OW manual.

When it comes to Dive Theory a lot of the problems IDC Candidates have with Dive Theory can actually be found in the Open Water Diver manual. As such it’s not a bad idea to go through the Quick Quizzes, Knowledge Reviews and Final Exam.

Required Manuals

It is a requirement to own the latest editions of the following PADI Diver level materials for your IDC and IE. These are from courses you have already taken on your path to becoming a PADI Divemaster:

And you will need the following Instructor level materials:

  • IDC Pack
  • EFR Instructor manual

Please click here for our Indepth VIP Pricing offered to our IDC Candidates

 4. Go Dive as much as possible, nothing replaces real life experience!

Assist your PADI instructor as often as you can. Practice all your skills, especially the 24 Skills of the PADI skill circuit. Concentrate especially on your buoyancy skills: Hovering and Neutral Buoyancy. Also, your Out of Air skills: Alternate Air Source and CESA (the controlled emergency swimming ascent.) And don’t forget Remove and Replace skills: Scuba unit and Weight Belt, both at the surface and underwater.

The "demonstration quality" expected of an Instructor is a far cry from being able to "do the skill" capabilities of an Open Water Diver . Reviewing the skills shown on the PADI Divemaster DVD is well worth doing.

DEMONSTRATING these skills is something you should put into practice.

And If possible get a PADI instructor to watch you perform Rescue Diver Exercise #7: "Unconscious Diver on the surface." You can review an excellent demonstration of this on The PADI Rescue Diver DVD or Rescue Diver Touch.

Again, a demonstration and workshop of Rescue Diver Exercise #7 is included in the IDC Prep.

And of course, make sure you have all the dive equipment required of a PADI Divemaster and Instructor. Find the complete list in the General Standards and Procedures section of your PADI Instructor manual. Open your manual to Standards, Training and then to Required Equipment. Service and update all of your equipment ensuring it is ready for action.

5. Lastly relax!

Remember the more prepared you are, the less of a workload you will have during the IDC. This results in a more relaxed and enjoyable PADI IDC!