Not a certified diver yet? Want to continue your education?

At Big Blue 33 we teach scuba diving according to NAUI standards. NAUI is the NATIONAL ASSOCIATION OF UNDERWATER INSTRUCTORS, our certifications are accepted whereever you could possibly go to dive and they have set standards in the recreational diving industry.

We offer all NAUI courses listed below. Teaching materials are available in English, German and Korean. Our diving classes are small groups of 2-4 students and you can get started any time you wish. After completing a course students will receive their NAUI certification card.


Try Scuba Diving is a non certification program to introduce non-divers to scuba diving. Your instructor will introduce you to the knowledge and skills you need to go on a shallow dive with him and observe some of the colorful marine life of Jeju Island. Diver to instructor ratio is 1:1 on all Try Scuba dives. There is no certification for the Try Scuba Diving program.
1 day / 1 dive

NAUI Scuba Diver is the entry level scuba certification course. It includes confined water training, classroom sessions and open water diving. This course provides the fundamental knowledge and skills to scuba dive in open water without the direct supervision of an instructor.
4days / 2 confined water dives and 4 open water dives

NAUI Advanced Scuba Diver includes navigation, deep diving, night diving and 3 elective dives. With this course there are no classroom sessions, just introductions to those new aspects of scuba diving. The Advanced Scuba Diver course may be taken right after Scuba Diver certification, no further diving experience is required. Divers who are open water certified by other training agencies may also register for this course.
3 days / 6 dives

NAUI Master Scuba Diver is the highest non professional certification level and an excellent progression toward NAUI leadership roles. Advanced Scuba Diver certification by NAUI or other training agencies is required to register for this course.
6 days / many dives

NAUI Scuba Rescue Diver trains you in the knowledge and skills needed to manage risks and effectively handle inwater problems and diving emergencies. Minimum certification to register for this course is NAUI Scuba Diver or open water certification by another training agency.

Several Specialty Courses are available on request.

If you consider a career change and plan on becoming a diving professional please talk to us. We provide solid training for future dive leaders in our NAUI Assistant Instructor and NAUI Divemaster courses. These can be done either as an 8-10 day course or a 3 months internship where you get plenty of opportunity to apply the knowledge and skills you have learned and become part of the BIG BLUE 33 team. Send us an email and tell us what you have in mind.

Before you register for any diving course please consider the following:

Scuba diving is an activity for people who are reasonably fit, enjoy good health and are comfortable in the water. You should be able to swim a distance of 200 meters without help or buoyancy devices and be able to swim a short distance under water.
Absolute contraindications to scuba diving include but are not limited to disorders that lead to unconsciousness, severe emotional instability, diabetes, asthma, epilepsy, heart or lung diseases and ruptured eardrums.
Congested airways or sinuses are incompatible with scuba diving.