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Open Water Diver Course

The PADI Open Water Diver Course is the most demanded and attended worldwide. With this course, you will obtain your first certification of diving with autonomous equipment, with which you will be able to enjoy dives of up to 18 meters deep in thousands of dive sites around the world.

This course is very important and special for every diver, because in it, you will learn everything you need to enjoy the underwater world pleasantly and safely. It is the base of theoretical, technical, and practical knowledge that will make you a great diver. So get ready for an underwater adventure that will change your life!

The PADI Open Water Diver Course is divided into 3 blocks; A theory block, where you will learn all the basic knowledge about the world of diving that you will need to know to dive. Another block of practical exercises in a pool or a controlled natural environment where we can train the diving skills that we will need in the open sea dives. And a third block, which is the most fun, in which we will put into practice everything we have learned throughout 4 scuba dives in some of the best dive sites in Thailand.

A different way lo learn scuba diving

We believe in a personalized way of teaching. Diving is our passion, and we put all our love and energies into teaching you to dive in the best possible way. Unhurried, at your own pace, taking as much time as needed to make you become a great diver. To make this possible, our groups are small, generally between 2 and 4 students per instructor, so that you can receive the attention you deserve. Always placing extra emphasis on conservation, respect for the environment, and safety in diving.

All this with a relaxed and professional atmosphere. Come and meet us, we have the best atmosphere to get any scuba diving license in Koh Lanta. You will love it!


  • Previous qualification: None
  • Minimum age: 15 years. ** 10-year-old children and older can earn a PADI Junior Open Water Diver certification.
  • Medical form: You must complete a medical form and be fit for diving.

PADI Open Water Diver course structure

As we have already mentioned before, the PADI Open Water course is divided into 3 blocks:

Diving theory: We will read the course manual and watch 5 videos. Where you will learn all the theory necessary to complete this course and become a great diver. At the end of each chapter, you will take a short knowledge review test, and once everything is completed, a final exam (pretty easy, promise).

Confined waters: In one of our associated pools, or on the seashore, in front of our dive center, we will practice a series of exercises over 5 mini dives, which will be essential for open water dives.

Open Waters: The big moment has arrived; You will spend two days aboard our boat enjoying 4 open water dives, where you will put into practice everything you have learned during the previous days.

Check the PADI website for further information about the PADI Open Water Diver Course.

Included in the Open Water Diver price:

The price of the PADI Open Water Diver Course includes all the PADI materials and the 4 dives necessary to complete this course, transportation services from your accommodation to and from the dives, breakfast, lunch, and all food and drinks served on the boat, rental of the complete diving equipment, and the services of a PADI professional.

Not Included in the price:

There is a fee of 600 Baht per person per day that the Thai government charges for diving within the National Parks. This supplement has to be paid to dive at any of the dive sites on Koh Lanta and Koh Phi Phi and is not reflected in the prices of the dive day or the courses, as it is a rate totally unrelated to the dive center. Hidden Depths Diving is a mere intermediary that is facilitating and organizing the collection of money and delivering it daily to the authorities of the corresponding marine park.

Cost: 14.200 THB

Book your dives online

Book your dives online at least one week in advance and get a 10% discount!

Medical requirements for scuba diving

It is mandatory to pass a simple medical questionnaire before taking any PADI diving course. It is a simple questionnaire on different pathologies in which it is supposed that you answer “no” to all the questions to be eligible and start the diving course.

In case you answer “yes” to any of the questions, it does not mean at all that you are not suitable to dive, it simply means that you need to consult a qualified doctor and that he/she certifies in writing that you are suitable for diving.

You can bring this certificate with you, or we can do it in Koh Lanta for an approximate price of 600 Baht. If you want, we can help you manage the reservation with the doctor, and it will not take you more than 10 minutes to have your certificate.

If you want to go ahead, or want to take a look at the medical form, here are the links to the PADI medical form in the main languages:  English SpanishFrenchGermanItalianChinese (simplified).  

Once you finish the course

Once you finish the PADI Open Water Diver course, you will be a certified diver. This certification enables you to dive autonomously to a maximum depth of 18 meters.

Your next challenge

The PADI Open Water certification is just the beginning! After checking how great diving is, surely at some point you will want to expand your limits and your knowledge. The next diving course is the PADI Advanced Open Water Diver, where you will learn new skills and expand your dive limits.

A different dive experience

In Hidden Depths Diving we firmly believe that an eco-responsible diving model is possible. We strive every day to offer you a different, familiar, environmentally friendly, safe, and fun diving experience. Where you will feel part of a great family of divers who, in addition to enjoying diving, we fight so that future generations can enjoy the same wonders that we dive today.