What SCUBA diving courses can you get a junior certification in?

Question

I have a kid who is 13 and has his adv. open water, and wants to keep going. what other courses can he take

Answer 1

He could go the the Master Scuba Diver level, if PADI certified.  Take 5 specality classes to get to that level.

The next step past that, Divemaster, requires you to be 18 years old.