Paddy, what level of divers can take people into the water?

You must complete five professional courses and become a "celebrity" leisure diver.

Then there is the diving captain who is a master diver.

Only the diving master can be a diving guide, while the teaching part is only qualified as a "teaching assistant".

To become a more worthwhile diving instructor, there are the following stages.

Open water diving instructor (open water diving instructor)

Master Diving Instructor (Shi Ming Diver Training Officer)

Head coach (head coach)

Course director (course director, that is, the qualification of specialized training coach)

I hope the above answers can help you.