
Master diver in the United States Navy ranks as the highest level of diving qualification one can attain in warfare. This enlisted person typically has the greatest knowledge, experience and training in all aspects of diving and underwater salvage. Master divers must have at least 15 years experience and have completed a specialization training course. The United States Navy offers a specialization program that will allow you to earn master diver status.
PADI Master Scuba Diver
PADI Master Scuba Diver certification scuba diving certification recognizes scuba diving expertise. The program can be offered by several North American training agencies like the National Association of Underwater Instructors or the Professional Association of Diving Instructors. This is the most advanced level of diving certification. You will be required to dive at least 30ft underwater while completing the course.

NAUI Master Scuba Diver
If you want to learn more about scuba diving and are looking to advance your skills, the NAUI Master Scuba Diver program might be the right course for you. This course is designed to equip you with the knowledge necessary to organize dives for others. You will learn how to use a compass, perform underwater communications, and recognize pre-panic signs. Learn how to lead a diver in a new place. This course includes both classroom sessions and open water dives.
NAUI Enriched Air (Nitrox) Diver
Taking the NAUI Enriched Air (NITX) Master Diver course is a great way to expand your diving experience. The course covers many aspects related to enriched air diving, such as how to mix Nitrox or oxygen. Students will learn how to analyze the breathing mixture, the physiology of oxygen and nitrogen, and the hazards of handling both gases. They will also learn about Equivalent Air Depth, common gas mixing techniques, and the concept of Equivalent air depth. The enriched oxygen course can be used as an extension to an open water diver's Scuba Diver certification.
NAUI Rescue Scuba Diver
You must take the required courses to achieve your goal of becoming a NAUI Rescue Scuba Diver Master Diver Instructor. This certification is a prerequisite to the NAUI FIT course. It prepares you for becoming a professional NAUI Instructor Leader. The Try Scuba program is the best way to start. This program aims to provide you with the necessary skills and knowledge to safely dive in open sea.

NAUI First Aid Course
A NAUI First Aid course for master divers will prepare you to respond to a variety of emergencies that can arise in the water. The course includes refresher sessions as well as valuable information about new First Aid standards, training best practices, and other useful information. You will have the knowledge and skills to immediately respond to an emergency. You will also be able to use the skills that were taught in class.