How to take underwater photos?

I don't think my camera is waterproof… It's a Nikon. How do I check if it's waterproof?
what do I need to buy for my camera so I can take underwater pics? Where can I buy them and for how much?

If your camera is not waterproof then just go to any printing shop and make it laminated not more then 5$ then you can take underwater photos with ease

1) read the manual
2) check the camera's manufacturer website and underwater photography/diving suppliers for an underwater case _for_your_camera_type_ - Nikon makes lots of different cameras, and each needs a different underwater case
3) Amazon, diving suppliers, camera shops, …
4) 50… 50000 $, depending on type, camera, functionality, max.depth

Presume it is NOT waterproof, and get a waterproof case…

Unless specified, it is not waterproof. An underwater housing should be purchased.http://www.google.com/search?hl=en&output=search&sclient=psy-ab&q=underwater+camera+housing&btnK=

It is NOT a waterproof CASE, but a housing.

Get an underwater camera!

If it is not waterproof you can buy a case that is made to fit over camera that is waterproof. Also you can buy disposable waterproof cameras