Recreational dive supervisors are trained by recreational diving instructors .
Recreational dive supervisors are certified as divemasters , dive control specialists , dive coordinators , or whatever the specific training agency chooses to call them , by the agency with which the instructor is registered .
Recreational dive supervisors are trained by recreational diving instructors , and certified as divemasters , dive control specialists , dive coordinators , or whatever the specific training agency chooses to call them , by the agency with which the instructor is registered .