The PADI Master Scuba Diver rating can be had by simply completing any 5 specialty classes. That is not a significant requirement. Divers who are looking for more can instead request a custom Master Scuba Diver class that goes beyond that requirement by selecting specialties that will make you the diver you want to be. By tailoring the program to meet your goals, the specialties selected can be adapted to meet your individual needs. The cost for the program is no more than the cost of the individual specialties combined.