The PADI Deep Diver Specialty is the ultimate training for exploring the ocean’s hidden depths between 18 and 40 meters. Our experienced instructors teach the essential decompression theory and physiological safety protocols required to access Koh Tao’s premier deep dive sites and shipwrecks with total confidence.
Deep Diving on Koh Tao
There’s something about the depths of the oceans that fascinates people and as scuba divers we are naturally attracted to exploration of the unknown.
Although the majority of recreational dive sites are within 18-30 meters of the surface, there are some great shipwrecks as well as some stunning wall dives where going that little bit deeper adds value to the dive and overall experience.
The PADI Deep Diver course can be scheduled over 1-2 days and prepares you to plan and execute dives that little bit deeper. As a PADI Deep Diver, you will be certified to dive to 40 meters, the absolute maximum depth within the PADI recreational diving system of scuba diving.
What are you waiting for?
Included in our Deep Diver Specialty Course
- PADI Deep Diver E-learning manual
- Dive Insurance
- Small Groups (4:1)
- 1-2 day schedule
- PADI Deep Diver certification
- Full set of Aqualung rental equipment, including a Dive Computer for your course
- Official Isla Tortuga Divers T-shirt
- Best Vibes!

What is Deep Diving?
A recreational deep dive is defined as any dive deeper than 18 meters. The absolute maximum depth limit in recreational scuba diving is 40 meters.
What are the benefits of diving deeper than 18 meters?
Being certified to dive deeper opens up a greater number of dive sites for you to explore, see different types of aquatic animals, and topography more unique to deeper environments such as walls.
Deeper diving skills and experience allow you to explore wrecks that lie untouched by waves and surge or recover objects that have been lost in deeper water.
What you learn on PADI Deep Diver course
- Deep diving objectives and personal depth limits.
- Essential specialized deep diving equipment and important guidelines for using dive computers.
- Buddy procedures, deep diving techniques, emergency decompression, and deep drift and wall dives.
- Symptoms and signs of nitrogen narcosis and factors affecting the onset and intensity of narcosis at depth.
- Signs & Symptoms of decompression sickness, predisposing factors toward decompression sickness, avoiding decompression sickness, and emergency care for a diver suspected of having decompression sickness.

What is involved in the PADI Deep Diver course?
The course consists of 2 sections:
Knowledge Development
Complete the PADI Deep Diver e-learning manual and complete the knowledge review.
Open Water training
Deep Diver Training dives 1 & 2
You will meet your PADI instructor prior to the dive boat departing to review your e-learning and ensure you understand everything before the training dives.
If you are already a PADI Advanced Open Water diver, you have already completed Deep Diver Training dive 1, so we can offer you a fun dive along with Deep Diver Training dive 2 on this dive trip.
During this training session, your PADI Deep Diver Instructor will be introducing you to colors at depth and what happens to pressure-sensitive objects at depth, as well as underwater navigation techniques.
Deep Diver Training dives 3 & 4
Deep Diver Training dives 3 & 4 are normally conducted on one of our morning trips. Dive 3 has a maximum depth of 40 meters and is the dive where we will conduct the narcosis tests. During both dives, you will be required to plan and execute your deep dive plan using all the knowledge and new skills you have learned during the course.

Prerequisites to do PADI Deep Diver course
To embark on this exciting adventure and further improve your skills as a diver, there are a series of requirements:
- PADI Adventure Diver Certification or equivalent: You need to be either a PADI Adventure Diver or equivalent with 7 logged dives and have dived relatively recently. If you need a scuba refresher on your diving skills, we can do that too!
- Be in good health: As with every PADI diving course, you will have to complete a medical questionnaire to ensure that there are no contraindications with diving.
- Minimum age: You must be at least 15 years old to be eligible to enroll on a Deep Diver course.
What is the PADI Deep Diver course Schedule?
The PADI Deep Diver course offers flexibility in terms of schedules.
If you are already an Advanced Diver, this is the most popular schedule:
Complete the PADI Deep Diver e-Learning ahead of time.
Day 1 – Deep Dive Training dive #2
- Meet your Instructor to review the e-learning
- Complete Deep Dive 2 on either our morning boat 07:15 or afternoon boat 12:15 pm
- Review and log the dive
Day 2 – Deep Dive Training dive #3 & #4
- Complete Deep Dive #3 & 4 on our morning boat, departure @07:15
- Review and log the dive
*Upgrade with an extra fun dive for 800 baht to make this trip a 2-dive trip.
In less than 24 hours you will have completed the PADI Deep Diver course and we will issue you with the prestigious PADI Deep Diver certification. This will allow you to dive anywhere in the world to a maximum depth of 40 meters.

Advantages of taking PADI Deep Diver course
With your PADI Deep Diver certification, you will be qualified to dive to depths of 40 meters, opening up access to some of the best wreck and wall dives in the world.
In the case of local diving opportunities in the Gulf of Thailand, dive sites such as Chumphon Pinnacle or Sail Rock offer some great deeper diving!
Completing your PADI Deep Diver is a great way to improve your deep diving skills, experience, confidence, and see more marine life.
And the best part? It’s incredibly fun!
If you are looking for new challenges and want to extend your limits as a diver, then the PADI Deep Diver course is for you.
Why Choose PADI for Deep Diver Specialty?
PADI dive centers must adhere to the highest training standards and customer service levels in the dive industry.
PADI is the most recognized agency worldwide when it comes to recreational diving courses, with hundreds of agencies around the world. PADI is established in more countries than any other agency.
In short, if you go to a small island in the middle of the ocean and there is a diving school, it is most likely PADI.
PADI is the only training agency whose curriculum is written by educational authors, using tried, tested, and trusted learning philosophies adapted for scuba diving.
The PADI system is performance-based, not time-based. What this means is you will have to earn your certification, and you can’t buy it!
PADI conducts customer satisfaction surveys to ensure its professionals meet the highest standards of education and safety, while other agencies only ask instructors or schools to manage their own standards.

Why sign up for PADI Deep Diver at Isla Tortuga Divers?
- We limit our class size to a maximum of 4 students per Instructor, providing you with a personalized and focused training course.
- Our dive boat MV Attawat is comfortable and spacious. Owning our boat gives us flexibility in choosing the dive sites that best suit you.
- The knowledge development portion of the course can be completed using the PADI eLearning program. Once you have completed the registration process and paid your deposit, you can get started straight away!
- Completing PADI’s e-learning ahead of time means no classroom on your PADI Deep Diver course!
- We are a PADI 5 Star Instructor Development Center, and all our instructors are trained in-house by our PADI Course Directors. This ensures the highest teaching standards, providing you with a quality and safe experience – and of course, lots of fun!
- We provide you with a dive computer for all your open water training dives at no extra cost!
- We only teach ‘diving with dive computers’ on all our PADI diving courses in line with the latest technology and educational principles.
- As an ‘Aqualung Partner Center,’ all our diving equipment passes the most rigorous quality and reliability tests.
- Last, but not least, we guarantee that you will learn to dive with a smile and that you will be left wanting more!
Koh Tao is a great location to go fun diving and explore our PADI Specialty courses. With our expert diving instructors, dive leaders, custom dive boat and quality dive equipment, Isla Tortuga Divers can meet the needs of all certified divers.
Contact us for fun dive pricing, our Air Conditioned Rooms or Shared Rooms and our daily dive site schedule.




