BASIC DIVEMASTER

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Start your professional dive journey with our comprehensive Divemaster Course, including all core training to become a certified Divemaster!

DIVEMASTER LIFESTYLE PACKAGE

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Our all-inclusive Lifestyle Divemaster program gives you everything you need to launch your dive career! From specialty training to hands-on internships, plus unlimited FREE Fun Diving for life!

Why should I become a Divemaster with Crystal Dive?

UNLIMITED FUN DIVING

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Throughout your Divemaster program you can enjoy unlimited Fun Diving. If you book our Lifestyle Divemaster Package you can enjoy fun dives free for life! *you must remain in active status and hold personal dive insurance

DISCOUNTED PRIVATE AC ACCOMMODATION

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On-site Accommodation

Our Divemaster Trainees can take advantage of our long-term accommodation in bungalows on-site. Our onsite bungalows are private, offer AC and have an ensuite bathroom. Priced at 13,000 THB per month (up to 2 months for our Divemaster Trainees). More info here.

QUALITY TRAINING

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With over 25 years of experience in the industry and recognition as one of the world’s largest SSI Instructor Training Centers, we proudly deliver exceptional professional-level training for our Divemaster candidates. Whether you're aiming to work in the dive industry or take the next step toward becoming an Instructor and beyond, we’re here to guide and support your journey every step of the way.

PRIVATE BOATS

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At Crystal Dive, we’re proud to operate two private, purpose-built dive boats. This allows us to match each trip to the training or fun diving needs of the day, ensuring smaller groups, more space on board, and the best dive site choices for every experience level.

LARGE POOLS

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Crystal Dive is one of the few dive schools on Koh Tao with two private, on-site training pools. Our larger pool, one of the biggest on the island, was purpose-built for scuba diving, providing the perfect environment for all levels of training in a safe, spacious, and controlled setting.

EQUIPMENT

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As one of Koh Tao’s biggest dive centers, Crystal Dive offers a large, well-organized equipment room to safely store both student and personal gear. For those looking to explore advanced diving options like sidemount, decompression, or independent diving, we also provide access to specialized technical equipment to support your next steps underwater.

Our package prices are adjusted for your current level of Training

Start from any certification level

*Price is adjusted to starting certification level

 

BASIC DIVEMASTER

What’s Included

  • SSI Divemaster Course
  • Use of standard SCUBA Equipment throughout your course
  • FREE use of dive computer
  • Discounted long-term accommodation (up to 2 months)
  • ‘Science of Diving’ Specialty

Not Included (Required)

  • Must have Professional tools *est. cost 3,500 THB
    • Compass
    • Cutting Tool
    • DSMB & Reel
    • Audible signaling device
  • SSI Divemaster Materials & Pro Registration Fee (9,900 THB)
  • Professional Dive Insurance (5,000 THB)
  • Diving Medical Examination Fee (500 THB)

Certification or at least 5 logged dives are required in the following areas:

  • Deep Specialty (7,250 THB)
  • Navigation Specialty (5,500 THB)
  • Night & Limited Visibility Specialty (5,500 THB)

 

DIVEMASTER LIFESTYLE

What’s Included

Everything from the Basic Divemaster PLUS:

  • UNLIMITED FREE DIVING FOR LIFE!
  • SSI Divemaster Materials & Pro Registration Fee (9,900 THB)
  • Worldwide Personal dedicated dive insurance (5,000 THB)
  • Deep Diving Speciality (7,250 THB)
  • Navigation Specialty (5,500 THB)
  • Night & Limited Visibility Specialty (5,500 THB)
  • Crew Pack (6,000 THB):
    • Compass
    • DSMB & Reel
    • Cutting Tool
    • Audible Signaling Device
    • Koh Tao Dive Guide (containing all Dive Sites in detail!)
    • Diving slate
    • T-Shirt
    • Dry bag
  • Computer Diving Specialty
  • Crystal Dive working internship (10,000 THB)
  • Diving Medical Examination Fee (500 THB)
  • Marine Ecology Specialty
  • Marine Conservation Activities (Coral Tribe)

HOW IT WORKS

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The Divemaster Program Tailored To You

The time frame for the course is up to you. You can make it intensive or take your time. Either way there is a few different parts to the course that you will need to complete before you can call yourself a Pro!

To begin with you will sit an Orientation. This is conducted by one of our two dedicated ‘Divemaster in Training co-ordinators’. Our DMT Co-ordinators will be responsible for supervising your entire course and overseeing your schedule from Day 1. They will build a schedule tailored to your needs and time-frame.

INTERNSHIPS & ECOLOGY

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Internship
The Lifestyle Package includes an optional hands-on internship, giving you real-world experience in the dive industry. It's a great way to build your skills, boost your resume, and open doors to future job opportunities, whether on Koh Tao or around the world.

Ecology
Our in-house eco-partners, The Coral Tribe, lead impactful environmental projects, from building artificial reefs to transforming ocean plastic into usable products. During your program, you'll have the chance to get involved, make a difference, and be part of the movement to protect our oceans.

What thing’s will i do

Your schedule will include

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Theory

The theory section of the Divemaster course covers several essential topics to prepare you for the responsibilities and leadership roles of a Divemaster. Here’s what’s involved:

1. Dive Theory

  • Physics of Diving: Understand the fundamental principles of how pressure, buoyancy, and gas laws (like Boyle’s Law and Dalton’s Law) affect divers. This includes the effects of depth on the body and how to manage pressure-related issues.
  • Physiology of Diving: Learn how diving affects the body, including the respiratory and circulatory systems, and how to manage the risks of nitrogen narcosis, oxygen toxicity, and decompression sickness.
  • Dive Tables & Computers: Study dive tables (or dive computers) to understand no-decompression limits, dive time, and safety stops. You’ll also learn how to plan multi-level and repetitive dives.

2. Dive Equipment

  • Equipment Types and Functions: Understand the function and maintenance of standard diving equipment (e.g., mask, fins, regulator, BCD, wetsuit/drysuit, tanks, etc.), and how to assist divers with gear problems.
  • Troubleshooting: Learn how to handle common equipment failures and how to guide divers in managing and resolving issues underwater.

3. Dive Planning

  • Dive Site Management: Learn how to plan dives, assess dive sites, and consider environmental factors (such as currents, visibility, and wildlife) that affect dive safety.
  • Buddy System: Understand the importance of the buddy system and how to evaluate dive fitness and capabilities for all members of the dive team.
  • Risk Management: Study risk assessment and emergency procedures to ensure safety before, during, and after dives.

4. Leadership Skills

  • Assisting Instructors: Learn how to assist during training, including managing groups, supervising skills, and ensuring safety during student dives.
  • Guiding Certified Divers: Study the responsibilities of guiding certified divers on recreational dives, including dive briefings, underwater communication, and managing diver behavior.
  • Emergency Procedures: Learn how to handle emergency situations, including emergency oxygen administration, rescues, and accident management.

5. Environmental Awareness

  • Marine Life and Ecosystems: Understand the importance of marine conservation, how to identify key species, and how to interact with the underwater environment responsibly.
  • Sustainable Diving Practices: Learn the principles of minimizing your environmental impact while diving and promoting responsible diving practices to others.

6. Theory Tests and Quizzes

  • Throughout the course, you’ll complete various written exams and quizzes to assess your understanding of dive theory, safety protocols, and the practical aspects of leading dives and managing dive groups.

7. Dive Shop and Business Operations

  • Covering basic dive shop operations or customer service skills, especially if you’re planning to work in a professional dive setting.

The theory section ensures you’re equipped with the scientific knowledge, safety protocols, and leadership abilities needed to assist instructors, guide divers, and manage dive activities effectively.

Training Workshops

The Divemaster course includes several hands-on workshops designed to develop your practical skills in diving leadership, safety management, and dive supervision. These workshops focus on specific tasks and scenarios you will encounter as a Divemaster, preparing you to assist instructors and lead certified divers effectively.

Divemaster Supervision Workshop

  • Guiding Certified Divers: This workshop focuses on the skills required to guide certified divers on recreational dives. You’ll practice giving briefings, managing dive groups, monitoring diver safety, and maintaining good communication with divers during the dive.
  • Dive Site Management: You will learn how to assess dive sites for safety, manage environmental factors (like currents, visibility, and weather), and handle unexpected challenges during the dive.

Dive Planning Workshop

  • Dive Planning and Briefing: In this workshop, you’ll develop the ability to plan and conduct dives, taking into account diver experience levels, environmental conditions, and safety considerations. You’ll practice creating dive plans and presenting dive briefings to groups of divers.
  • Risk Management: Learn how to evaluate dive risks, assess the physical and mental readiness of divers, and adjust dive plans as necessary to minimize risk. This may include monitoring air consumption, depth, and dive times.

Underwater Navigation Workshop

  • Navigation Skills: You’ll practice advanced navigation techniques, such as underwater compass navigation and natural navigation (using environmental cues). This is a critical skill for guiding dives safely and efficiently.
  • Navigation for Groups: In this workshop, you’ll learn to navigate with a group of divers, ensuring the group stays together, follows the planned dive path, and returns to the entry point safely.
Course Assists
  • Assisting with Student Training: You’ll practice assisting instructors in teaching diving skills. This includes supervising students during confined water training and helping them master essential scuba skills.
  • Instructor Mentorship: While not strictly a “workshop,” as part of your Divemaster training, you’ll spend time shadowing and assisting SSI instructors during training sessions. This hands-on experience is invaluable in learning how to lead and manage groups of divers, observe instructor techniques, and apply your knowledge in real-life settings.

LEVEL UP...

INSTRUCTOR COURSE

Duration: 2 weeks

Divemaster course prerequisites

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Minimum Age

To join our Divemaster program you have to be at least 18 years of age.

Minimum Dives

To join our Divemaster program you need to have 40 logged scuba dives totaling 25 hours. If you don’t have them upon arrival, you can build those up here before officially starting with your training. With our Lifestyle package our dives remain free before and after the program!

Certifications

You will have to be a Stress & Rescue Diver (or equivalent) and completed the React Right Course (or equivalent) within 24 months before Course start & certification.

Have the following SSI certifications, an equivalent from a recognized training agency, or provide proof of experience by showing at least five (5) logged experience dives in each of the following areas:

  • Deep Diving (Deeper than 30m)
  • Navigation
  • Night & Limited Visibilty

You may need Oxygen administration training (3,000 THB) if you did not do a React Right course. Contact us to discuss your options.

Medical Statement

You need to be medically fit for diving. You will find the Medical Statement for Scuba Diving here to download. To participate in a Pro-Level-Training Course you need this Medical signed by a physician issued within12 months before course start.

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Basic Divemaster Course

Become a certified Divemaster and be able to:

  • Guide certified divers on underwater tours
  • Assist in the training of new divers
  • Co-ordinate dive trip logistics in a leadership role.
  • Conduct Divemaster programs such as Scuba Reviews & Snorkeling
  • Assist with Equipment Maintenance

Divemaster Lifestyle Package

Our DM-Lifestyle packages offer you all-inclusive training packages from your current diver level to fully qualified Divemaster with no further cost! Choose your package based on your starting point!

฿30,000฿81,500

Basic Divemaster Course Includes:

  • SSI Divemaster Course
  • Use of standard SCUBA Equipment throughout your course
  • FREE use of dive computer
  • Discounted long-term accommodation (up to 2 months)
  • 'Science of Diving' Specialty

Not Included *Required for the Course* 

  • Must have Professional tools *est. cost 3,500 THB
    • Compass
    • Cutting Tool
    • DSMB & Reel
    • Audible signaling device
  • SSI Divemaster Materials & Pro Registration Fee (9,900 THB)
  • Professional Dive Insurance (5,000 THB)
  • Diving Medical Examination Fee (500 THB)

Certification or at least 5 logged dives are required in the following areas:

  • Deep Specialty (7,250 THB)
  • Navigation Specialty (5,500 THB)
  • Night & Limited Visibility Specialty (5,500 THB)

Divemaster Lifestyle Package includes all of the above PLUS:

  • Courses: Open Water, React Right, Stress & Rescue, Divemaster (depending on chosen package)
  • Crew Pack (6,000 THB):
    • Professional tools
    • Koh Tao Dive Guide (containing all Dive Sites in detail!)
    • Diving slate
    • T-Shirt
    • Dry bag
  • Computer Diving Specialty
  • Crystal Dive working internship (10,000 THB)
  • Discounted accommodation option for the course duration
  • Marine Ecology Specialty
  • Marine Conservation Activities (Coral Tribe)

Divemaster Course

Basic Divemaster Course Includes:

  • SSI Divemaster Course
  • Use of standard SCUBA Equipment throughout your course
  • FREE use of dive computer
  • Discounted long-term accommodation (up to 2 months)
  • 'Science of Diving' Specialty

Not Included *Required for the Course* 

  • Must have Professional tools *est. cost 3,500 THB
    • Compass
    • Cutting Tool
    • DSMB & Reel
    • Audible signaling device
  • SSI Divemaster Materials & Pro Registration Fee (9,900 THB)
  • Professional Dive Insurance (5,000 THB)
  • Diving Medical Examination Fee (500 THB)

Certification or at least 5 logged dives are required in the following areas:

  • Deep Specialty (7,250 THB)
  • Navigation Specialty (5,500 THB)
  • Night & Limited Visibility Specialty (5,500 THB)

Divemaster Lifestyle Package includes all of the above PLUS:

  • Courses: Open Water, React Right, Stress & Rescue, Divemaster (depending on chosen package)
  • Crew Pack (6,000 THB):
    • Professional tools
    • Koh Tao Dive Guide (containing all Dive Sites in detail!)
    • Diving slate
    • T-Shirt
    • Dry bag
  • Computer Diving Specialty
  • Crystal Dive working internship (10,000 THB)
  • Discounted accommodation option for the course duration
  • Marine Ecology Specialty
  • Marine Conservation Activities (Coral Tribe)

FAQ – Frequently Asked Questions

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Can I start my Divemaster Course any day?

In general, yes. We start our courses any given day. The official start of your Divemaster will be your orientatio. We try to do these in groups routinely however there are things you can be doing before your orientation, such as building up your dives (40 minimum), specialty training or just getting stuck into your E-learning. 

Is it possible to change the schedule for the Divemaster Course?

Our schedules are flexible and we will do everything to adjust it to your travel plans. If you are short on time, you wont want to miss any of the scheduled activities, but if your not in such a rush you can take your time!

What is the minimum time needed to complete my Divemaster Course?

4 weeks would be an intensive time frame. We would much prefer you to spend 6 weeks or more building up your experience. This will help you with future employment!

What are the rates for accommodation in my Divemaster Course?

For your Divemaster Course we offer accommodation in a private AC room (choice of Double or Twin) at a discounted rate.  More information here or just contact us directly.

What are the minimum requirements to start my Divemaster Course?

The minimum requirements for you to enroll in the Divemaster Course are listed here. If you still have questions about specific requirements or an equivalent certification, please contact us directly.

What sort of jobs can I do with my Divemaster certification?

The Divemaster certification is the first professional level, where your main roles will be to guide certified divers as well as assist with courses and operations around a dive school. However you are not just limited to working in dive schools. Many Divemasters work in the yachting industry as well as conservation projects and many more!

How much fun diving will I get to do during my Divemaster Course?

We have 2 custom built dive boats and choose the dive sites based on your course requirements, comfort level and weather conditions. Generally, we change dive sites on a daily basis, so you will dive at the best spots available for your free days. If you´re not short on time you can make use of the unlimited free diving. More about our boats here.

Can I Work for Crystal Dive after completing my Divemaster Course?

Yes! We constantly have a rotation of staff as many people work for us temporarily. If you decide you would like the chance to join the team, you can do the working internship after your Divemaster certification. This internship is actually included for free with the Divemaster Lifestyle Package.

Whats the next step after completing my Divemaster Course?

If you want to look for more responsibilties after your Divemaster, the next step is becoming an instructor! This is where you will be able to introduce people to the underwater world for the first time! Check out the Instructor course here!

Is it better value to do the Lifestyle Divemaster Package?

Yes! As it has none of the additional costs! As well as free diving for life!

However if you did already have your own insurance, professional level dive accessories, and your required specialty training then this course (Divemaster only) is the one for you.

Other Questions?

Please check out our general FAQ-Page which will answer most of your questions about Koh Tao, diving, weather conditions and everything else. Anything that cannot be answered there, please just contact us and we get right back to you!