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PADI IDC Thailand: Where, Cost & Format

PADI IDC Thailand: Where, Cost & Format

The quick version

Compare PADI IDC options in Koh Tao, Phi Phi, Phuket and Koh Lipe. Prerequisites, classic vs hybrid, cost checklist and how to choose a center.

6 min readBy Koh Reefs Editorial
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Last updated November 2026: a PADI IDC Thailand course runs on Koh Tao, Koh Phi Phi, Phuket and Koh Lipe, and every route ends at the same PADI Instructor Examination. Choose between islands on Course Director, format and what the fee includes. PADI sets the prerequisites, while each center sets price, housing and support.

Featured image: katsommers, CC BY-SA 2.0, via Flickr.

Quick answer: where to take a PADI IDC in Thailand

Centers run the PADI Instructor Development Course (IDC) on four islands: Koh Tao, Koh Phi Phi, Phuket and Koh Lipe. Candidates need a PADI Divemaster or equivalent leadership rating, a minimum age of 18 and 100 logged dives by the Instructor Examination (IE). Island matters less than the Course Director, the format and the inclusions. Most published guidance comes from dive operators with a commercial interest, so compare several quotes. For the wider picture of learning to dive here, see our Thailand dive-training overview.

  • Pick Koh Tao if you want the densest professional scene and a choice of centers.
  • Pick Koh Phi Phi if you want about 10 days of practical training after online theory.
  • Pick Phuket if you want a center with its own classroom, training pool and dive boat.
  • Pick Koh Lipe if you want a quieter island near Tarutao National Marine Park.

IDC prerequisites checklist

PADI publishes its professional-level requirements on its PADI professional levels page. Operators in Thailand quote the same core list. You need to meet every item before the IE, and centers will ask for proof at sign-up. Not yet a Divemaster? Start with our Divemaster course guide. Earlier ladder steps are covered in the Thailand certification guide.

  • PADI Divemaster or a qualifying leadership-level certification.
  • Minimum age of 18 years.
  • Certified diver for at least 6 months.
  • At least 100 logged dives before the Instructor Examination.
  • CPR and first aid training, such as EFR, within the previous 24 months.
  • A diving medical signed within the previous 12 months.

Common ways candidates get caught out

Three gaps cause most last-minute problems. A medical older than 12 months fails the checklist. An EFR card older than 24 months does the same. Dive logs can also fall short: 100 dives must be on record by the IE date, not the IDC start. Check your dates against the IE, not just the course start. Age rules for younger divers sit in our dive age limit guide.

Koh Tao vs Phi Phi vs Phuket vs Koh Lipe

The table below summarises what operators publish. Cells marked verify have no supported detail, so ask the center. Dive conditions and seasons vary by coast, so check current dive-season conditions for your chosen island.

Koh Tao vs Phi Phi vs Phuket vs Koh Lipe
Photo: rightee, CC BY 2.0, via Flickr.
IslandScene and candidate densityDive conditionsFormat optionsQuoted price basisAccommodationBest fit for
Koh TaoLarge professional community; several centersVerifyClassic and hybrid฿68,900 (one provider's quote)Differs between centersCandidates who want choice and a busy scene
Koh Phi PhiSmaller; one partner center in the sourceOperators cite reefs, turtles and reef sharks; verify seasonsHybrid onlyBrochure; verifyVerifyCandidates who want a long practical block
PhuketEstablished international communityAndaman Sea sites; verify seasonsClassic and hybrid฿68,900 (one provider's quote)ExtraCandidates who want classroom, pool and boat in one operation
Koh LipeQuieter; away from busier tourist islandsNear Tarutao National Marine Park; verify seasonsClassic and hybrid฿68,900 (one provider's quote)Dorm included in that quoteCandidates who prefer a calm setting

Classic vs hybrid IDC

A classic IDC puts the classroom work on the island. Candidates at one Koh Tao center describe a roughly two-week program in an air-conditioned classroom. A hybrid IDC moves theory online first. One provider runs 7 days of live online classroom at 3 hours a day. Practical training then happens at the center. On Phi Phi that practical block is about 10 days. Hybrid suits a working candidate who can study in evenings but cannot take long leave. Classic suits someone with a flexible schedule who wants everything in one stretch. Both formats lead to the same IE, so the exam itself does not change.

Tip

Hybrid on Koh Phi Phi means about 10 days on the island after online theory, against the roughly two-week classic program at Koh Tao.

PADI IDC Thailand cost: what to budget for

One provider quotes ฿68,900 for its IDC at Koh Tao, Phuket and Koh Lipe. That is one provider's price, not a market average. Inclusions differ. Each quote covers the IDC, the EFR Instructor course and materials. Dorm accommodation is included only on Koh Lipe. Phuket accommodation is extra, and Koh Tao arrangements vary by center. PADI IE and application fees are separate and paid to PADI. Ask each center for its current price in writing. Normalise inclusions before you compare totals.

  • Course fee and the EFR Instructor course.
  • Training materials.
  • Accommodation during the IDC and the IE.
  • PADI IE and application fees, paid to PADI.
  • Insurance.
  • Flights and local transport.
  • Living costs between the IDC and the IE.
  • Optional MSDT or instructor specialties.

How to choose a Course Director and center

Start with the Course Director and the teaching staff. Koh Tao carries a reputation for high-volume instructor training. Some candidates report that direct contact with their Course Director settled that worry before booking. Treat the reputation as a prompt to ask questions, not as a verdict on any island. Use the list below as a script for emails and calls. Ask for answers in writing and compare them side by side.

  • What is the Course Director's track record, and who are the staff instructors?
  • What is the group size, and what is the candidate-to-instructor ratio?
  • Where is the pool, and how do you reach the boat and dive sites?
  • What is the IE pass rate, and how is it measured?
  • What does the fee include and exclude?
  • What are the refund and rescheduling terms?
  • Can you contact graduates for their own account?

After the IDC: the IE, internships and jobs

The IE is a separate step run by PADI. Passing the IDC does not certify you. Many candidates then add an internship to gain teaching experience. One Koh Tao center describes a 6-week MSDT internship. Our Divemaster internship guide explains how internships work in Thailand. Job-placement promises deserve caution. Ask for verifiable graduate outcomes and treat any percentage with scepticism. Pass guarantees are marketing claims, so read the terms behind them.

Tip

Ask whether a 6-week MSDT internship, like one Koh Tao center describes, is included before you compare fees.

Timing and a sample planning timeline

Work backwards from the IE date. Book your medical and EFR first so both stay inside their windows. Confirm your count of 100 logged dives. Then take the IDC, either about two weeks of classroom or 7 online days plus roughly 10 practical days. Sit the IE next, then start work or an internship. Check current dive-season conditions for your chosen island before you fix dates. Readers weighing instructor routes outside PADI can compare agencies in our PADI vs SSI comparison. Earlier rungs are covered in the Open Water course guide.

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