So many places in Scotland have tunes named after them you could probably do any itinerary just with those - e.g. round Loch Lomond with "Roy's Wife of Aldivalloch", "Loch Lomond" and one of the parodies of it like that one about getting a hangover and drinking it all, "The Top of Ben Lomond", "The Maids of Arrochar", "Loch Sloy" etc.

Or (if it was a short film) don't use music at all but instead try to find a recording of Edwin Morgan reading that poem that's mostly silly-sounding placenames used as if they were real Scots words - it ends

What was the toast?
Schiehallion!