Explorer 30 - Advanced

with Hydronauts


Ready to advance your diving capabilities and think like a scuba diver? If you’re already a certified Open Water diver, or have just completed the Open Water 20, then the Explorer 30 course is the next step to becoming an advanced scuba diver. 

While continuing to build on the skills from Open Water 20, this course will help you advance your buoyancy skills and expand your spatial awareness. After your Deep dive and course completion, you will be certified to dive to a max depth of 30 meters and learn a few advanced diving specialty skills. 

The Explorer 30 course consists of 3 mandatory dives (Buoyancy Dive, Navigation Dive & Deep Dive) along with 2 electives of your choice. Choose from these options: Night Dive, Shipwreck Dive, Photography Dive, Search & Recovery Dive, or Underwater Naturalist Dive.

The Explorer 30 course is generally completed in 48 hours and certifies you to dive anywhere in the world to 30 meters.

10,000 THB



Must be a minimum of 15 years old.

Must be a certified Open Water diver. 

Must 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 have access to of the RAID training manuals and quizzes. Contact us to get started with your e-learning!

Step 2 -
Theory & Workshops

Upon arrival, you will meet with your instructor to begin the mini-academic session. This time will be used to discuss techniques and skills to be executed on each of the upcoming dives. After that, a mini quiz, an exam and then let’s go diving. 

The academics are a lot less than in the Open Water course but are still vital to the mandatory and elective dives of the Explorer 30 course. 

Step 3 -
Open Water Dives

Explorer 30 is 5 dives total with 3 mandatory core dives. The mandatory dives are Buoyancy, Navigation and Deep. Students get to choose 2 elective dives from a list of about 12 dives, depending on the availability of the dive center. All of the dives of the Explorer 30 course are designed to expand on the skills and knowledge learned in the Open Water 20 course. 

On average, our student Explorer 30 divers complete the course in just 2 days. The first day is an afternoon boat for Buoyancy and Navigation, then watching the sun go down before a Night dive. After logging the day’s dives over some drinks or food from the restaurant, the day will be complete. The following morning will be the final two dives beginning with Deep and finishing the course on a high note with a dive on the HTMS Sattakut.

Hydronauts Elective Dives

Night Dive (most popular)

Wreck Dive (most popular)

Boat Diver

Fish Identification

Search & Discovery

Underwater Photography

Underwater Naturalist


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 bedrooms, 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 diving. We tailor each course and dive to your unique needs.

Top-Notch Facilities

Hone your skills in our training pool built for divers and giant stride off of our beloved, two-story dive boat.

Free Digital Logbook

Keep track of your adventures, dive buddies and training with the free RAID digital logbook. Access your dive memories for life.

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 Course, you will be issued with an e-certification card which recognizes you as an internationally certified 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