Been on the USS
Drum (SS-228) in Mobile, Alabama when I was a kid and we visited the battleship USS
Alabama (BB-60). On the website now (
www.ussalabama.com) it shows the boat up on some kind of concrete pilings, but it seems to me that when I visited it it was in the water moored behind the battleship. This was early 1980s so it's been awhile.
Also been on the USS
Clamagore (SS-343) at Patriot's Point here in Charleston. This was a late WWII commission that was then modified (several times, I suspect) and spent about thirty more years in active service.
Finally, was lucky enough to go on an active fast attack boat here some years back. It was a Sturgeon-class, pretty sure she was the USS
Grayling but I can't remember 100%.