DDT is very happy to now be able to offer NAUI certifications. NAUI is one of the oldest certification agencies and commonly attracts very dedicated and skilled divers. NAUI courses are taught to the highest standards in the dive industry, resulting in more skill and safety. Some of the courses require a bit more time and energy to complete (more confined and open water work, and knowledge development) in their effort to produce the best divers possible.

We now offer a near full array of NAUI courses; recreational, leadership and technical.

For all our courses, I prefer modular pricing. At the onset of the course, a student will be charged the instructor and textbook fees. As the course progresses, the student will be charged for pool and dive site fees at the time they are incurred. This way, if a student takes shorter or longer than an average course, the fee is fair for both student and instructor. Typical totals are included for each course where applicable.

Click for NAUI Course quick navigation:

NAUI Recreational Courses
Scuba Diver - Nitrox Program - Advanced Diver - Rescue Diver - Master Diver

NAUI Leadership Courses
Diver Master - Assistant Instructor - Instructor

NAUI Technical Courses
NTEC (NAUI Technical Equipment Configuration)
Intro To Tec
Technical Support leader
Technical Nitrox (Advanced Nitrox)
Helitrox
Decompression Techniques
Wreck Penetration


Recreational Courses
NAUI Scuba Diver
Course Summary:  The NAUI Scuba Diver Course is an extremely well-organized and comprehensive course designed for those who want a more extensive open water course than most agencies offer. This extra time and attention is why the NAUI OW course is more than other offerings.

Prerequisites: Age from 15 years for Scuba Diver Certification, 10 - 14 years for Junior certification.

Please check our download page well in advanced of your course for medical and release forms. This will allow time for you to ask any questions and/or address any possible medical concerns in advance of your course start date.

Duration:  If a students is well-prepared for the academics, the can sometimes be completed in 3 days, but more likely 4.

Required Swims:
10 Minute survival float
50 ft (15m) underwater swim (breath hold)
225 yard (207 m) swim, non-stop, any stroke, no time limit

Rescue Activities:
While skin diving, bring another diver to the surface from 3 meters.
Transport a buddy 50 meters on the surface while maintaining eye contact
In scuba, recover a diver from 3 m, remove weights, mask, snorkel, simulate rescue breaths.

Costs: Instructor fee is JPY 40,000 for students who join a class individually, or JPY 35,000 each person for 2 or more people who join a scuba class together. The total estimated costs for the NAUI Open Water Diver would be:

NAUI Nitrox Program
Course Summary:  Nitrox is an often misunderstood gas. Many students initially believe that Nitrox is for deeper diving. Actually, nitrox is simply gas with higher amounts of oxygen that is used at recreational depths. The higher level of oxygen (and lower nitrogen) allow divers to stay underwater longer and have shorter surface intervals.

In this course, divers will learn how to use nitrox mixtures from 22% to 40%, though 32% and 36% are most common. This is also a chance for divers to learn more about diving gasses in general and why certain gasses are used for certain purposes.

Until recently, NAUI required two dives for this certification. This is no longer the case. There is independent book study, possibly lecture, and a test. Students may also do two dives with the instructor in which they will do the actual dive planning and gas testing.

Prerequisites: Dive certification from a recognized agency.

Please check our download page well in advanced of your course for medical and release forms. This will allow time for you to ask any questions and/or address any possible medical concerns in advance of your course start date.

Duration:  This lecture/workshop can be done in several hours.

Costs: 

DIR Option: For an extra JPY 10,000, an additional two dives on this course will be taught like a mini DIR orientation with assorted buoyancy tasks, and discussions/orientation to DIR philosophy, configuration and procedures. This option is designed to transform your diving.

Prerequisites: Open Water certification from a recognized agency. Age from 15 years, or 10 - 14 years for Junior certification.

Please check our download page well in advanced of your course for medical and release forms. This will allow time for you to ask any questions and/or address any possible medical concerns in advance of your course start date.

Required Dives (6):
1. Navigation
2. Night or low visibility dive
3. Deep Diving
Then choose 3 others from a variety, though we usually recommend Buoyancy skills dive, mock decompression dive and search/recovery.

Rescue Activities:
Brief review and practice of basic rescue techniques

Duration:  Since there are six required dives, this course must take at least two days. It can be done in a weekend if there is enough time to complete three dives on both of the days. This is a good course for Osezaki or Oshima, since night diving can be done year round, making the 3rd dive on Saturday a breeze.

Costs:

Duration:  Independent stud includes textbook and video. The confined water practice can be done in 3 to 5 hours depending on student number and experience. Open water scenarios will take one or two days mixed in with fun diving to create realism.

Required Dives: A minimum of eight dives are needed to complete the course. Of the eight dives, five are mandatory:
- Emergency procedures and rescue
- Deep/simulated decompression diving
- Limited Visibility or night diving
- Underwater navigation
- Search and recovery-light salvage

The remaining three dives can be chosen from other NAUI offerings.

A significant written test is required.

Special Note: For a dive type/environment to be considered "satisfied" (ie night dive, deep, etc) the candidate must show mastery of the dive type or environment. Merely having completed the required dive type would not be sufficient if the standards of the dive were not met. Because of this, it could take more than 8 dives to complete the 8 required dive types/environments.

Rescue Activities:
Review and practice of rescue techniques.

Other Skills: Candidates will be taught and evaluated on the following additional skills
- Advanced dive planning, including air consumption calculations and rock bottom
- Proper use of surface marker buoy (SMB)

DIR Option: For an extra JPY 10,000, an additional two dives on this course will be taught like a mini DIR orientation with assorted buoyancy tasks, and discussions/orientation to DIR philosophy, configuration and procedures. This option is designed to transform your diving.

This course can also be done in doubles.

Duration:  Since candidates must demonstrate mastery in 8 dive types/scenarios in order to satisfy the course standards, a comfortable, well-prepared diver would take a minimum of 3 or 4 diving days, spread out over as much time as the student prefers.

Costs:

Prerequisites:
Advanced diver and Rescue Diver from a recognized agency.
Participants will need recent medical approval from a physician.

Required Swims:
25 yards underwater swim, one breath
450 yards swim < 10 minutes
50 yards swimmer transport
20 minute survival swim/float

Skin diving Skills:
900 meters < 18 minutes
Skin diving ditch and recovery

Scuba Skill Tasks:
100 yards scuba transport < 4 minutes
Buddy breathing 4 min (2 minutes w/o mask)
Scuba ditch and recovery
Scuba bailout

Skill Requirements:
Skin Diver rescue
All scuba diving skills from recreational courses
Complete a night dive
Organize simulated rescue in open water
Pre-dive briefings
Assist with training
Organize and conduct dives for certified divers
Organize and conduct night dive for certified divers

Academics:
Assorted classroom/lectures/workshops
Written examination

Required Textbooks:
Master diver text (if course not previously taken)
Master diver workbook (if course not previously taken)
Leadership/Instruction text
Leadership/Instruction workbook

Duration:  Varies, but can be done in 1 to 3 months depending on candidate time available.

NAUI Assistant Instructor
Course Summary:  Assistant instructors are able to participate in many levels of teaching training. This can be the first step into professional scuba instruction. 
NAUI requires candidates to have a minimum of 20 dives to enter the program at the discretion of the instructor. Candidates must also have command of NAUI Master Diver materials.

Aside from the skills practice and knowledge and tests that NAUI requires, candidates will also have practice in DIR dive concepts and skills, advanced buoyancy skills, advanced gas management training, training is use of lift bags and Surface Marker buoys, limited orientation on the basics of decompression, and more.

Divers who are up to the challenge, please contact Jim to map out your plan.

Prerequisites:

Duration:  Varies, but can be done in 1 to 3 months depending on candidate time available.

ITC training will be part time and at the candidates' own pace. All academics and skill work will be covered. Final signoff will be by a NAUI Course Director, most likely our associate in Okinawa. It's possible the time with the Course Director will only take a few days.

Aside from the skills practice and knowledge and tests that NAUI requires, candidates will also have practice in DIR dive concepts and skills, advanced buoyancy skills, advanced gas management training, training is use of lift bags and Surface Marker buoys, limited orientation on the basics of decompression, and more.

Divers who are up to the challenge, please contact Jim to map out your plan.

Prerequisites:
Dive Master or Assistant Instructor status required. CPR/First aid current. Leadership candidates from agencies other than NAUI will have to cover the NAUI Master Diver materials. Participants will need recent medical approval from a physician.

Required Swims: (Same as DM/AI)
25 yards underwater swim, one breath
450 yards swim < 10 minutes
50 yards swimmer transport
20 minute survival swim/float

Skin diving Skills: (Same as DM/AI)
900 meters < 18 minutes
Skin diving ditch and recovery

Scuba Skill Tasks: (Same as DM/AI)
100 yards scuba transport < 4 minutes
Buddy breathing 4 min (2 minutes w/o mask)
Scuba ditch and recovery
Scuba bailout

Skill Requirements: (Same as DM/AI)
Skin Diver rescue
All scuba diving skills from recreational courses
Complete a night dive
Organize simulated rescue in open water
Pre-dive briefings
Assist with training
Organize and conduct dives for certified divers
Organize and conduct night dive for certified divers

Academics:
Assorted classroom/lectures/workshops
Written examination

Required Textbooks:
NAUI Leadership library (pricey, but has one of everything you need):
- Instructor guides (hardcopy or software versions)
- Student Textbooks (one from each course)
- Handbook of course standards

Duration:  Varies depending on candidate time available.

Technical Courses

NTEC (NAUI Technical Equipment Configuration)
Course Summary: This is more of a workshop as opposed to a course, and most divers who have been with DDT for a while will already be familiar with our gear and configuration. NTEC utilizes a hogarthian style with backplate and wing and minimalist ic gear. Participants will be oriented in the proper gear for technical use.

Prerequisites:
- 18 years of age or older
- Advanced scuba diver or equivalent
- Nitrox certification
Please check our download page well in advanced of your course for medical and release forms. This will allow time for you to ask any questions and/or address any possible medical concerns in advance of your course start date.

Required Dives:
Dives may or may not be required for this workshop.

Academics and course materials may be required.

Duration: This workshop will take a few hours.

Costs:

Intro to Tech
Course Summary:  In the NAUI system, this course is roughly the equivalent of a DIR fundamentals course. The advanced diver will learn the tools, skills and procedures for safer diving. While beneficial for any diver, this course is designed for those moving on to technical diving, which will require the course to be completed in doubles configuration.

Prerequisites:
- 18 years of age
- Advanced diver or equivalent
- Nitrox certified

Please check our download page well in advanced of your course for medical and release forms. This will allow time for you to ask any questions and/or address any possible medical concerns in advance of your course start date.

Equipment: At this level, students are required to own the following equipment
- Backplate and wing BC
- Regulator(s) depending on singles or doubles training
- SMB and spool
- Cutting device
- Compass
- Bottom timer
- Wetnotes and slate
- Spare mask
- Light appropriate for signaling on deep or dark dives

Academics: Significant reading and lecture reviewing nitrox and covering the basics of decompression, applied sciences and applied skills/procedures. As always, there is a written test.

Required Dives/Skills:
- Minimum 4 dives, none to exceed 18 meters
- Advanced buoyancy work
- Air shares and emergency procedures
- Valve manipulation for doubles use
- SMB use
- Proper signaling
- Participate in Oxtox rescue

Rescue Activities:
Participate in Oxtox rescue

Duration:  The diving for this course can be covered in a weekend. The academics may take longer.

Costs:

Technical Support Leader (TSL)
Course Summary:  This NAUI technical course is designed to train knowledgeable NAUI Instructors, Divemasters, and Assistant Instructors who are also technical divers to act as part of a support team for technical diving and training activities. An active status NAUI TSL is qualified to assist a NAUI technical instructor in technical training. You can think of this certification as a Technical Divemaster.

Prerequisites:
- NAUI Leadership certification
- NAUI Technical certification
- Minimum 18 years of age
- Experience assisting in recreational dive instruction
- Current O2 provider certification
- Current rescue

Please check our download page well in advanced of your course for medical and release forms. This will allow time for you to ask any questions and/or address any possible medical concerns in advance of your course start date.

Required Dives/skills: Four dives to include
- Two dive session must include dive planning, gear rigging, technical team support/response, and decompression stage rigging.
- Two dives are to include emergency response and rescue/evacuation.
- recognition and diagnosis of manifold issues
- Air shares in restrictions
- Locate a lost line
- deployment of lift bag

Rescue Activities:
Two dives are to include emergency response and rescue/evacuation, oxtox rescue.

Academics: Review of academics appropriate to technical courses. There is a written exam.

Duration:  This course can be completed in a weekend or two.

Costs:

Technical Nitrox (Advanced Nitrox)
Course Summary: This course is designed to provide the Nitrox certified diver with skills and knowledge needed to minimize risks of utilizing optimized Nitrox breathing gasses up to 100% pure O2, for dives up to a max depth of 40 meters, not requiring mandatory decompression. (This course may be combined with Helitrox and Decompression Techniques. The resulting course would be 10 dives for certification, 4 of which would be helium-based dives.)

Prerequisites:
- Minimum age 18 years of age.
- Nitrox diver
- Deep diver or equivalent experience
- Proof of minimum 50 logged dives
- NAUI NTEC/Intro to Tech

Please check our download page well in advanced of your course for medical and release forms. This will allow time for you to ask any questions and/or address any possible medical concerns in advance of your course start date.

Required Dives: Four divers are required, though I seldom expect this course to be taught by itself.

Rescue Activities:
Review and practice of Oxtox rescue techniques.

Duration:  Dives will take a weekend though, once again, this is not generally seen as a stand-alone course.

Costs:

Required Dives: Four dives required. Training depths shall not exceed 46 meters. Four dives are to be made using Helitrox mixture, at least one of which is to be a repetitive dive. (When his course is combined with Technical Nitrox and Decompression Procedures, total dives will number 10 dives.)

Rescue Activities:
Review and practice of Oxtox rescue techniques.

Duration: Dives will take a weekend though, once again, this is not generally seen as a stand-alone course.

Costs:

Decompression Techniques
Course Summary:  This course is to provide the diver with a working knowledge of the theory, methods and procedures of planned stage decompression diving. As part of the course, students will plan and conduct a standard stage decompression dive not to exceed a depth of 40 meters. Equipment requirements, team procedures, NTEC configuration, decompression breathing gas mixtures, and decompression techniques are to be presented. (This course will in all likelihood be taught with Technical Nitrox and Helitrox. The resulting course would entail 10 dives).

Prerequisites:
- Minimum 18 years of age
- NAUI Master Scuba diver
- Deep diver or equivalent experience
- Technical Nitrox diver
- Helitrox Diver
- Proof of 75 logged dives
- NAUI NTEC/Intro to Tech

Please check our download page well in advanced of your course for medical and release forms. This will allow time for you to ask any questions and/or address any possible medical concerns in advance of your course start date.

Required Dives: There are a minimum of 6 dives in this course. No dives are to exceed 40 meters unless this course is combined with another involving deeper water diving as an integral part of the combined course.
- Use of tables and computers for decompression planning
- Advanced planning considerations; O2 exposure, N2 absorption, gas consumption
- Ability to hold 3 meter decompression stop intervals to within acceptable limits
- Contingency planning
- Demonstrate mastery handling most likely failures of equipment
- Simulated or actual decompression on at least 2 dives.

Rescue Activities:
Review and practice of Oxtox rescue techniques.

Academics: Topics to cover Applied Sciences, Decompression diving equipment and decompression dive planning. Knowledge development may require more than one weekend. Test is required.

Duration:  Dives will require one or more likely 2 weekends, though this course will not usually be taught by itself.

Costs:

Wreck Penetration
Course Summary: This course is designed to provide the diver with the skills and knowledge needed to gain experience and minimize risks in penetration wreck diving at depths not to exceed 40 meters. Wreck penetration is defined as diving inside a sunken vessel, aircraft or similar structure.

Prerequisites:
- Minimum 18 years of age
- NAUI NTEC/Intro to Tech
- Minimum of 50 logged dives

Please check our download page well in advanced of your course for medical and release forms. This will allow time for you to ask any questions and/or address any possible medical concerns in advance of your course start date.

Required Dives: Participants will do 4 dives.

Rescue Activities:
Review and practice of Oxtox, lost buddy, lost line, out of air in passages and rescue techniques.

Duration:  The dives in this course can be completed in a weekend.

Costs: