mcohen1021
Contributor
I can tell you there was a huge difference between the PADI nav AOW dive people I know have done and the nav specialty (SDI) I did. One square against, among other things, a class including a nav course of 8 different waypoints, with legs of different distances.
I expect the PADI nav specialty would be more intensive, as well.
It's been a few years since 1990 when I took my PADI AOW, but we definitely did not do what you describe in your class. We did however do it in <2 ft of visibility at Squaw Creek Reservoir in TX, so that added to the fun.
My last 5 or so freshwater dives I have done have all been in literally <1 ft visibility (working to install anchors), and it has been done by literally feeling around. Occasionally, I was lucky enough to have a stationary object at the surface to follow the line to the existing anchors. A real blast, I'll tell ya.