Posted on another, unrelated site, are pictures of HMCS Ojibwa (S72). She's being restored and moved to a permanent display area as a museum ship, although it's on dry land.
If you Google her name, there are a number of links to her history and the story of her preservation.
"It was common knowledge that you had to be half nuts to ride diesel boats, and the Navy just let it go at that". "Dex" Moore