Advanced 35


The Advanced 35 course is a unique RAID course. The course breaks the tradition of a standard Advanced course and adds a second deep dive certifying you to dive to 35 meters!

Truly fitting the term “Advanced Scuba Diver”, students benefit from extra confined water or pool training in buoyancy, navigation, and rescue scenarios prior to open water training with 6 open water dives, including one elective.

Advanced 35 has 6 open water dives.

1. Buoyancy Dive – Increase your mastery of hovering, fin & propulsion techniques, and spatial awareness.
2. Navigation Dive – Learn how to navigate around dive sites using a compass and natural queues to pinpoint places of interest and be able to get back to the boat.
3. Deep Dive (30m) – Learn about the extra considerations involved with deep diving and observe the effects of color change and pressure at depth.
4. Deep Dive (35m) – Extend your depth certification further and see if you experience the effects of narcosis and measure its impact on your mental faculties
5. Rescue Dive – Practice the self-rescue and buddy-rescue scenarios you learned in the pool out in the open ocean
6. Choose your 6th Elective Dive: 

Night Dive – Learn to communication underwater via a torch and understand Night dive safety precautions. Observe completely different marine life and activity from your day dives.
Shipwreck Dive – Discover the HTMS Sattakut Shipwreck, veteran of the Battles of Iwo Jima and Okinawa!
Search & Recovery – Further your navigation work and introduce rigging and raising heavy objects.
Underwater Naturalist – Discover and understand as much about marine life and tropical reef ecology as one day will allow.

15,000 THB


Must be a minimum of 15 years old.

Must be a certified Open Water diver.

Have a minimum of 4 hours logged underwater in an Open Water environment.

Step 1 -
Online Study

Begin your e-learning online before you arrive.

Your training starts online where you will access all your RAID training manuals and quizzes. Contact us to get started with your e-learning before you arrive!

Step 2 - Theory & Workshops

On arrival, you’ll meet you’re instructor who will review your pre-completed e-learning with you.

Step 3 - Pool Training

This is an additional dive to enhance your ability before the open water.

In the first part of your confined water dive, you will concentrate on buoyancy control with a particular emphasis on weight distribution which will help you to achieve perfect trim. During the second part of the session, you will elaborate on the compass work learned in your Open Water course and then practice various search patterns before practicing torch communication. The dive finishes with a review of out of gas drills and SMB deployment.

Step 4 - Open Water Dives

Now it’s time to learn what you have learned in theory and put it into practice.

Your six open water dives will take the knowledge and skills you acquired in the classroom and pool to the ocean over three days. 

Scuba diver swimming through a school of fish.


Flying after your dives? Be sure to give yourself an 18-hour window after your final dive.

Need a place to stay? We are a beachfront diving resort! We offer rooms from mixed dorms, double bed rooms, family rooms, and bungalows for weekly or monthly rent! You can book a room here

Please keep hydrated. Remember to drink plenty of water before and after your dives.

Bring sunscreen (preferably reef safe) and apply it an hour before entering the sea to protect marine life.

Why Choose Hydronauts?​

RAID Instructors​

Our experienced instructors are hand-picked, highly trained, and passionate about scuba diving. We tailor each course and dive to your unique needs.

Beachfront Diving Resort​

Southwestern-facing property including a dive shop, hotel, training pool, cafe & restaurant, dive boat, and beach bar. We offer diving & accommodation packages for every budget.

Guaranteed Small Groups

We guarantee small groups of no more than four students to an instructor or dive guide so that you get the individual attention you deserve.

State-of-the-Art Equipment

We choose to dive and teach in Backplate & Wing BCD with a Long-hose, Short-hose regulator configuration favored by technical divers.

Dive Anywhere in the World

Upon completion of your RAID scuba diving course, you will be issued with an e-certification card that recognizes you as an internationally certified scuba diver.

Low Carbon Footprint

We make every effort to reduce our footprint and use of paper and plastic. All our course materials are hosted online giving you access for life.

Reserve your space now


Have other questions? These are some of our most frequently asked questions but if they don't answer what you are looking for then please reach out to us directly.

Absolutely we do. You can check out our rooms as we have many different room types to fit most budgets.

If you find a room you would like to book, you can do so here.

Yes! You will need to head over to RAID’s website and create a profile before beginning your FREe-Learning. From there, you can download any and all courses that interest you and begin learning right away. You can even take the quizzes just not the exams. 


While you are able to read the material and take the quizzes, this does not equal a certification. 

The next logical course is Explorer 30, which is our version of the Advanced Open Water that the other agencies offer. 

You can also take Nitrox or just go for some fun dives to show off your newly acquired skills.  

Of course. After completing any quiz or exam, all missed answers will be shown along with the correct answer. During the course academics session, your instructor will go through these with you and explain the answer in further detail. 

Absolutely! This is a great way to literally test the waters and experience the underwater world first-hand without taking a full course.