PADI Underwater Naturalist Specialty Instructor course

MSDT • PADI Specialty Instructor course, Koh Tao, Thailand

Course Price: 3,000 THB

Would you like to teach your students more about the marine ecosystem and ensure you can answer all their questions on subjects such as the different aquatic life groupings and how they interact with one another?

Would you like to have the knowledge to ensure your student divers really understand what they observe in the underwater environment?

Diversity of Life around Koh Tao

Koh Tao boasts an array of diverse marine life and has a variety of dive sites from shallow reefs to deep granite pinnacles. There are plenty of ideal dive sites for you to conduct this popular PADI Specialty.

The PADI Underwater Naturalist Specialty course can be scheduled over 1 day. You will teach your students how to view aquatic ecosystems objectively and help them to understand the intricate interactions and relationships between marine organisms.

The PADI Underwater Naturalist specialty course requires your students to identify 2 types of aquatic plants, 4 types of vertebrates and 4 types of invertebrates as well as locate and identify a number of inter-relationships demonstrating symbiosis.

Throughout the course you will discuss signs of human effects upon the environment and teach your students how to demonstrate minimal passive and responsible interactions and the necessary diving techniques that will enable them to do this.

Who can enrol on the PADI Underwater Naturalist Specialty Instructor course?

A renewed PADI Open Water Scuba Instructor (OWSI)

Note: IDC/OWSI candidates may participate in the PADI Underwater Naturalist Specialty Instructor training course but may only apply for Specialty Instructor certification after passing an IE.

Underwater Naturalist Specialty Instructors must have a minimum of 10 naturalist dives prior to certification. This is a course exit requirement and the dives may be completed following the instructor-training course.

What will you learn?

You will participate in the following sessions:

  • Present and be evaluated on a prescriptive presentation from the Underwater Naturalist Specialty knowledge review
  • PADI Underwater Naturalist Specialty standards, procedures and the curriculum
  • How to organise, conduct and market the PADI Underwater Naturalist Specialty course
  • Open Water training session – where you will learn how to demonstrate, execute and evaluate the student level skills from the PADI Underwater Naturalist Specialty course.

You will complete the open water-training dive on one of the several local dive sites suitable for this type of training.

As a PADI Underwater Naturalist Specialty Instructor you are certified to independently teach the PADI Underwater Naturalist Specialty Course

Course Price: 3,000 THB

PADI Materials:

Please bring the following materials with your PADI Specialty Course Instructor Manual. You received these as part of the IDC Crew Pack during your IDC.

In addition you will need a copy of the PADI Instructor Manual. As of 2010, the Instructor manual is available as a free download for all PADI Members that are renewed from

Course Price: 3,000 THB

PADI Fees  

PADI Underwater Naturalist Specialty Instructor Application fee: A$111

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Candidate Testimonials

"An Internationally Acclaimed PADI 5 Star Career Development Centre (CDC), this is a Dive Centre that provides you with an opportunity to change your lifestyle and develop a new career."


"Was a hard but great course! Thanks a lot again to all staff who teaches and prepared us so well, that finally the IE was easy going! Thanks Matt, Tina, Steph, Kenji, Steve, Manu and everybody else who supports us."


"They cater to your schedule during divemaster training so you can do it at your own pace and are also environmentally conscious which is an important factor. Anyone considering a professional career in diving should definitely consider Crystal."


"They are very dedicated, and were always there to help me with the theory, and to improve my scuba teaching skills. If you are still searching for a centre to do your IDC at, I recommend doing it with Matt."


"There was absolutely nothing that could have happened during the IE the candidates were not made very well aware of. Everything ran so smoothly for the candidates."


"It's a good decision to do your training with Matt, a lot of information is given and shared experiences. If you guys wanted to do IDC, I recommend doing it with IDC Koh Tao. Thank you for the amazing IDC."


"If you guy's are looking for good teachers and the best Course Director, this is the place..Thank you for guiding us, inspiring us and making us what we are today. Highly recommend."


"I enjoyed every single day of my IDC as well as my MSDT. Matt is an outstanding Course Director who goes all the way out for you, in preparation for the IE."


"The course was fun and you meet a bunch of new people, it’s not hard to fit in. When the day of the IE arrives, you don't even stress about it, because the Course Directors are the best."


"Did my IDC with Crystal Dive and IDC Koh Tao and I'm so happy I chose them. Matt Bolton made sure that there was lots of learning, training and laughs! I felt more than prepared for the I.E. And it showed!"

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