This is the way PADI describes the Professional Divemaster program in their homepage ! ! !

To begin your full- or part-time career in diving, attain the PADI Divemaster rating. After successfully completing PADI Advanced Open Water and Rescue Diver training, you'll work closely with a PADI Instructor to expand your diving skills and knowledge to the professional level. Then, in the most fulfilling part of the course, you'll learn and practice supervising diving activities and assisting with student training.

As a certified PADI Divemaster, you may supervise and assist with both training and nontraining dive activities in a variety of environments. PADI Dive Centers and Resorts employ PADI Divemasters to help with classes as well as lead guided dive tours off boats or the shore. You may also conduct the PADI Discover Local Diving experience and Scuba Review program for certified divers. Nondivers may also enjoy a visit to the underwater world under your supervision during the PADI Discover Snorkeling experience and PADI Skin Diver course.