Become certified in adult, child and infant CPR. All of these courses are offered by your local Red Cross chapter, and often times offered at your local YMCA.
Complete a First Aid certification course. First Aid courses and First Aid re-certification courses are offered by your local Red Cross chapter. Check with your local YMCA to see if they offer these courses as well.
Take a lifeguard certification course. Your local YMCA offers lifeguard certification courses which are usually a prerequisite for taking a swim instructor course. The Red Cross also offers lifeguard certification courses at local aquatic facilities.
Enroll in the Water Safety Instructor Course offered by your local Red Cross Chapter.