
Divemaster
The highest NAUI leadership rating below Instructor, built to run real dives for real divers.
Want to lead dives and dive trips, and take certified divers on vacation to some of the world's best sites? The NAUI Divemaster rating is built for exactly that. Many Divemasters work full-time or independently, supervising certified divers for dive clubs, shops, resorts, and charter or travel operations, and as a NAUI Divemaster you get to have those adventures again and again alongside your clients.
This is the highest NAUI leadership-level rating short of Instructor, and it trains experienced, knowledgeable divers to organize and run enjoyable, safe open-water dives for certified divers. An active-status Divemaster can conduct dives matching their training environment and conditions, run NAUI Recognition and Experience programs (like the International Diver or Stingray Experience) and award the associated recognition, and assist active NAUI Instructors during diving courses.
Divemasters who complete the NAUI-DAN First Aid Instructor orientation and use the required NAUI-DAN materials may also teach NAUI-DAN First Aid programs, extending their leadership role beyond diving itself into diver safety training.
The prerequisites mirror Assistant Instructor because the two ratings share the same foundation: a substantial logged dive history across varied environments and depths, current medical clearance, and the full run of certifications from Open Water through Master Scuba Diver, Rescue, Nitrox, and First Aid for the Diving Professional.
What You’ll Learn
- Organizing and supervising open-water dives for certified divers
- Running NAUI Recognition and Experience programs
- Assisting active NAUI Instructors in diving courses
- Dive site risk assessment and group management
- NAUI-DAN First Aid teaching pathway (with additional orientation)
What’s Next?
If all other prerequisites are met, a current NAUI Divemaster is qualified to enter a NAUI Instructor Training Course.
Course Questions
Divemaster, answered
The questions divers ask most before starting this course. Anything else, we’re one message away.
What does a working Divemaster actually do?
Organizes and leads dives for certified divers, at shops, resorts, charters, and clubs, runs recognition and experience programs, and assists instructors in courses. It's the highest NAUI leadership rating below Instructor, and many Divemasters work full-time.
What are the prerequisites?
Age 18 by the water phase, current Open Water, Rescue, Nitrox, and Master Scuba Diver certifications, First Aid for the Diving Professional, at least 50 logged dives with 25+ hours bottom time in varied environments, and a physician's approval for diving within the last twelve months.
How is Divemaster different from Assistant Instructor?
Divemaster centres on dive leadership, planning, supervising, and running real dives for certified divers, while Assistant Instructor centres on teaching alongside an instructor. The prerequisites are the same, so the choice is about which professional life you want.
What comes after Divemaster?
A current Divemaster who meets the remaining prerequisites qualifies to enter a NAUI Instructor Training Course, the final step to teaching and certifying divers yourself.
Continue Your Training
Entry LevelOpen Water Scuba Diver
Your first NAUI certification and the start of a lifetime of underwater exploration.
View Course
Certified DiverAdvanced Scuba Diver
Six open-water dives that turn a certified diver into a confident, well-rounded one.
View Course
Certified DiverEnriched Air Nitrox (EANx) Diver
Longer bottom time, shorter surface intervals, and a better understanding of what you're breathing.
View Course