
PADI Master Scuba Diver Trainer (MSDT)
Expand your instructor credentials with 5 PADI Specialty Instructor ratings and 25 certified diver certifications. The next step after your PADI IDC.
Duration
16 days
Max Depth
30m
Min Age
18+
Certification
Master Scuba Diver Trainer (MSDT)
The PADI Master Scuba Diver Trainer (MSDT) is the mark of a well-rounded, versatile dive professional. It requires a minimum of 5 PADI Specialty Instructor ratings and 25 PADI diver certifications — both of which are built into this 16-day program at Silent Divers.
For newly qualified PADI Instructors, the MSDT is the most impactful credential you can add to your profile. It immediately expands the range of courses you can teach, makes you more employable at premium dive resorts, and gives you the real-world certification experience that separates instructors who thrive from those who struggle to find work.
Who Is the MSDT Program For?
- Newly qualified PADI Instructors wanting to expand their teaching portfolio immediately
- Experienced instructors who want to add specialty instructor ratings and build certifications
- Instructors combining IDC + MSDT for the most complete professional start to their career
Ask us about combined IDC + MSDT pricing — it’s the most cost-effective way to arrive in Koh Samui and leave with the full professional credential set.
What’s Included
- 5 PADI Specialty Instructor courses — knowledge development, standards review, in-water workshops, and marketing each specialty
- Instructor internship — real-world teaching alongside our PADI instructors, earning your first 25 certified diver certifications under supervision of Course Directors Peter Wise and Alex Arnold
- Hybrid learning model — online theory preparation + in-person workshops in Koh Samui
Course Structure
Part 1 — Specialty Instructor Prep (5–6 days)
For each of your 5 specialties, the prep covers:
- Knowledge development sessions and PADI standards review
- In-water workshops — demonstrating and teaching specialty skills
- How to organise, market, and conduct the specialty as a commercial course
Specialties typically included: Deep Diver, Peak Performance Buoyancy, Enriched Air Nitrox, Wreck Diver, Underwater Photography. Additional specialties available at ฿2,500 each.
Part 2 — Teaching Internship
Hands-on teaching experience integrated into Silent Divers’ live course schedule. You’ll work alongside experienced instructors, progressively taking on more responsibility as you earn your first 25 diver certifications — the PADI requirement for the MSDT designation.
Why Do the MSDT in Koh Samui?
Koh Samui’s active dive tourism industry means the internship involves real students — not simulated scenarios. You’ll earn your certifications teaching genuine beginner courses at dive sites like Sail Rock and Koh Tao, in conditions that represent real-world professional diving.
What's Included
- 5 PADI Specialty Instructor courses
- Instructor internship (earning your first 25 diver certifications)
- Online theory modules
- In-water workshops
- Coaching from PADI Course Directors Peter Wise and Alex Arnold
Not Included
- Accommodation
- PADI eLearning materials and application fees
- Towels
- Swimwear
- Sunscreen
FAQ
A PADI Open Water Scuba Instructor (OWSI) can teach recreational PADI courses. An MSDT additionally holds 5+ specialty instructor ratings and 25+ certifications — demonstrating breadth of teaching experience and making them significantly more employable.
Yes — and we recommend it. The combination IDC + MSDT program is the most efficient path to a complete, competitive professional profile.
We typically include Deep Diver, Peak Performance Buoyancy, Enriched Air Nitrox, Wreck Diver, and Underwater Photography. Subject to availability and your preferences — contact us to confirm current specialty availability.
25 PADI diver certifications. The internship is structured to ensure you reach this number during the program. Contact us at [email protected] or call +66 8193 36641 (WhatsApp available) to discuss 2026 start dates.
Master Scuba Diver Trainer
MSDT — Earn Your Specialty Ratings
Add specialty instructor ratings and work towards Master Scuba Diver Trainer status.
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