Today marks International Water Safety Day to help spread awareness about drowning prevention and pool safety. Swim instructor Miren Oca says there's nothing more important than teaching your children how to swim. She says there are three safe water principles to practice---make sure you have barriers like a fence and or locks between your home and pool, designate an adult who's not on the phone to supervise swimming activities and know CPR so you can best respond in an emergency. She says you should also get your child started with swim lessons as soon as possible.