
The highest level of war qualification in diving is master diver in US Navy. This enlisted person typically has the greatest knowledge, experience and training in all aspects of diving and underwater salvage. At least 15 years' experience is required to become a master diver. You also need to have taken a specialization class. The United States Navy offers a specialization program that will allow you to earn master diver status.
PADI Master Scuba Diver
The PADI Master Scuba Diver scuba certification is a recognized level of 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. It is considered to be the most advanced level possible of diver certification. You will be required to dive at least 30ft underwater while completing the course.

NAUI Master Scuba Diver
The NAUI Master Scuba Diver Course might be for you if your goal is to improve your scuba diving skills. The course will equip you with the knowledge and skills to organize diving trips for other divers. You will learn how to use a compass, perform underwater communications, and recognize pre-panic signs. Additionally, you will learn how to take a dive in unfamiliar locations. This course consists of both two open water and a classroom session.
NAUI Enriched Air (Nitrox) Diver
The NAUI Enriched air (NITX), Master Diver course will help you to improve your diving skills. The course covers all aspects involved in enriched-air diving, including mixing Nitrox with oxygen. Students will be able to analyze and understand the physiology and hazards of using both nitrogen and oxygen. In addition, they'll learn the concept of Equivalent Air Depth and common gas mixing techniques. As the prerequisite to using the enriched water mix, an open water diver may take the enriched Air course.
NAUI Rescue Scuba Diver
The courses required to become a NAUI Rescue Scuba Diver Master Diver Instructor are necessary in order to realize your dream. This certification is a requirement for the NAUI FIT training course. You will be able to become a professional NAUI instructor or leader. Start by taking the Try Scuba course. This program aims to provide you with the necessary skills and knowledge to safely dive in open sea.

NAUI First Aid Course
NAUI First Aid for master divers will teach you how to respond to all kinds of emergencies that could occur in the water. In addition to refresher sessions, the course will also provide valuable information on new First Aid standards and training best practices. NAUI First Aid training will provide you with all the information necessary to be able to react quickly to any emergency. This course allows you to put into practice what you've learned in class.