Rose Robinson
Contributor
That is not correct, either.
My dad learned to dive when he was 14 (so, roughly 1959). From a friend of his dad's. Not a formal class that produced a C card. I'm originally from Tallahassee, FL, where my dad grew up. Once he learned to dive, he did a lot of diving in the north FL blackwater rivers and caves. He brought up a lot of artifacts and fossils from those rivers. Some of which are on display in museums there or in the care of the Smithsonian Natural History museum. All, without any training that produced a C card.
When he was in the Navy, he was assigned to a ship and took his own scuba gear with him on the ship. When his Chief saw his gear, he said "you're a scuba diver? Good. I have some jobs for you."
After I got tech training, I was pondering my dad's experience and the fact that he doesn't (to this day) have any C cards, so I can't take him out on a commercial charter boat. I asked him "how deep did you ever go when doing stuff your Chief assigned you?" He told me the deepest he ever dived, for an assigned task, was about 200'. This was back in the mid-60s. I asked him, "when you did that, you had to have done decompression stops on the way up. Did the Navy give you any dive training to learn to do that?" His answer "nope. I was not a Navy Diver. They didn't give me any dive training." I asked, "so, how do you learn how to do the required decompression?" His answer, in typical fashion for my dad, "I got the Navy diving manual, and I read it."
I understand, having said that, not a recommended methodology. the fact that your dear father lived to tell the story is something resembling a miracle.
Rose.