Hammer, there is some great diving up here. One of the best spots is right off that lighthouse in the pic...
http://www.bostonharbordivingcompany.com/divesites.html
There are also many more wrecks beyond what they list.
I got certified around 25 years ago but only dove a handful of times after that. I found it facinating but I don't know if it's claustrophobia or what but I'd get uneasy enough at times to make me drop it as a hobby. That was when I lived in Cambridge, I moved here to Leicester almost 20 years ago and it figures that this little town has a dive shop with pool and is 50 miles from the ocean!
If you make it up this way I'd be glad to have you out on the boat to do some diving. Lefty wouldn't let you come alone, would she?
Steve P.