Hi.  Do you know about Lifeguards
I have never worked as one, but I know you have to be a really strong swimmer and know a lot about first aid.
Lifeguards are strong swimmers and trained in CPR/AED first aid, certified in water rescue using a variety of aids and equipment depending on requirements of their particular venue
Some lifeguards work within a venue like a pool or a lake or a section of beach, but others are part of a larger rescue organization for a region.
Yep.  To be a lifeguard, a trainee must be able to swim 300 yards or 12 laps and tread water for 2 minutes without using their hands.
Their job is made harder by the fact that swimmers don't get the proper information and training about avoiding drowning.
This is true.  Luckily, lifeguards are so well trained!
Have you ever heard of Lifeguards Without Borders? It is a non-profit dedicated to reducing drowning around the world.
No I have not.  But that sounds like a great organization. 
It was founded in 2006 by two doctors, and is a division of the American Red Cross Volunteer Lifesaving Corps.