Just to keep things honest here... Not saying one is better or not / but let's not misrepresent / because you make it sound a whole lot easier than it is...
NAUI Master Diver -
A minimum of eight open water dives is required.
Age - Minimum is 15 years.
Diver Certification - NAUI advanced certification or the equivalent is required. The instructor is to ensure adequate student knowledge and capability before any open water training and shall use skill or other evaluations to do so.
Naui Dive Master has many more requirements
Age - Minimum is 18 years. Experience - Specified for each Leadership course. Required logged dives shall be varied in environment and depth.
Rescue Certification - At a minimum, Scuba Rescue Diver certification is required except for Skin Diving Instructor, for which a lifeguarding certification is adequate.
CPR & First Aid Certification - Current certification or verified competency in CPR and First Aid is required for registration. Certification training shall include one person adult CPR, infant/child CPR, two person CPR and the use of rescue breathing barrier devices, e.g. pocket mask®, face shield.
Medical Approval -
Administrative Requirements -
Diver Certification - The preferred minimum certification level is NAUI Assistant Instructor. Individuals not possessing the preferred certification may be accepted for training only if they meet the following criteria:
Certification - Certification as NAUI Master Scuba Diver and NAUI Scuba Rescue Diver or their equivalent. Divers with evidence of equivalent training and experience may be enrolled provided they pass the NAUI Master Scuba Diver written examination with a minimum score of 75%.
Experience - 60 logged open water dives.
Waterskills - Ability equivalent to that of a NAUI Assistant Instructor. Skills from the Assistant Instructor standards shall be evaluated if the candidate is not already certified as a NAUI Assistant Instructor