What do i need to do to get a scuba diving certificate ?

Question

like .....

a test

or pre-dive

or something like your need to do before you go in the real water

Answer 1

You take a class.  

Check with a local dive shop, and talk to an instructor.

You'll have at home or in class book learning, pool skill tests, a final exam, then, finally, your open water skills test.

Agencies need you to demonstrate (to be able to pass the class):

The ability to swim a certian distance.  Usually around 200 yards / meters.

The ability to tread water for a set period of time.  Usually around 10 minutes.

These two show you are comfortable in the water, and in reasonable shape to take the class.

Answer 2

You will need to get a certification before you can go diving without an instructor.  If you go to www.padi.com you can search for a PADI dive shop near where you live