People are often looking for information on scuba diving asking questions such as

Well if you are 10 years age or older the answer is quite simple - book a PADI Discover Scuba session with your local dive center.
This is one of the easiest and most popular introductions to scuba diving you can imagine.
Your qualified instructor will provide you with dive gear and provide some basic information on scuba diving such as safety instructions and some hand signals.
He or she will get you into the water as soon as possible at the hotel pool or off-shore where there are pool like conditions so that you can experience breathing and moving under water.
Once you experience the ease with which you breathe under water and the totally relaxing sensation of being weightless, you will realise that there is a whole new exciting world to explore and want to pursue your PADI certifications.