WHen I was a kid, I'm not sure I remember back that far

, we went to Hawaii for a family trip. Talked my Dad into surfing lessons at local hotel, and had a blast. Later in the trip we went to some black sand beach, and I almost got sucked out to sea with the undertow. Didn't faze me as I had no idea, but holy crap my parents were freaked out.
A couple years later we were in Acaupolco(sp?) and same thing. I was swimming off the hotel beach, and the mother of all waves(to me ) came in and I was underwater for what seemed like an eternity, flipping around with no control. I washed up on shore at the sea wall, which was a long ways from the water when I entered, and to say the least my Mom was out of her mind as were a whole bunch of parents. That time I got how lucky I was. Surfers have to be some powerful swimmers as the ocean is nothing to mess with.
My 3 sons have all had swim lessons to the advanced level as a result of my experiences, and I will still be nervous when we head to a real ocean. My middle son is a born lineman, 15 yrs old, 6'2" 235lbs, but is ridiculous in the water and swims the distance events for his high school team, but I know he still has no clue he is no match for the ocean when it is letting loose. Fortunately his coach is a Vietnam era rescue frogman, and Coast Guard Reserve member who has no mercy in making sure his teams can swim, but also could save a life if called.