There's another (Irish) Galway Bay too of course, and that's in the DT as well - My own dear Galway Bay (And also there's an irreverant parody of the one everyone knows.)

But a Scottish version? I'd imagine Scots would be more likely to sing the Irish words, but with a Scottish accent. The sentiments would apply just as well either way. I'm sure there are plenty of Scottish songs that say essentially the same thing.