If you become a diver, you will hear those words sometimes.
"Master Scuba Diver" is a scuba diving recognition level offered by most of scuba diving training agencies, such as SDI, PADI, SSI, NAUI. The requirements are slightly different from each agency; however, what it means is whoever have achieved this level have good level/number of diving experience. If you like to add more knowledge and skills in scuba diving, this is something you would like to go for.
"Divemaster" is totally different. It is the first level of Professional Divers with a role in recreational diving including organising & leading recreational divings in a professional capacity with supervisory responsibility for a group of divers. Once you become a Divemaster, people expect you to be as Divemaster whenever and wherever you are diving or even just being at dive sites.
While the focus of "Ma…