I was just reading an article recently that stated,"now is the time to dive the wreck of the Andria Doria." or something to that effect.  For those of us who like to collect wrecks and notch our wreck diving belts this is the everest of Tech Dives.  She is sitting in 250' of water off the coast of LI NY.  The article went on to say the she is decaying quickly and that presents both benefits and problems - ah, the old Yin and Yang.

They went on to say that the benefits are that the collapsing hulk has opened new passage ways to the interior where access was previously not available.  At the same time the collapsing wreck is also getting more and more dangerous to dive.

It got me thinking ,,,,,, When I learned to SCUBA dive the only limits were limited air supply, Nitrogen Narcosis and Oxygen Toxicity .  We used to regularly plan our dives to include decompression stops and thought nothing of it.  Diving to 200' + was on compressed air was not uncommon - we followed our planed and made the requite deco stops.  Mixed gas was only an experiment and then only used by special forces in the military.  It truly amazes me when I think of the advancements in the Sport Diving Industry.  I mean here we are talking about Joe Diver (yeah I know specially trained!) who can get on a charter boat with others of his trained kind and go on a guided tour of an historic wreck at 250' !!  
And live to tell about it !!!!!!
Man what a dream!

By the way the dive Master who was interviewed and acts a guide on the Andria Doria dives has made over 200 dives on the wreck!

Truly amazing!
I love diving !!!!!