Narcosis and decompression sickness are the patriarchs on the family tree of deep-wreck diving dangers. A diver does not dare board a charter boat bound for a deep wreck unless he honors these perils.
Not that I'm a deep-wreck diver, but I remember well the nervousness of my first week-long live aboard trip, and the initial dive plans that were much deeper than I had ever been before.
Also kind o…