For another song angle, 1966 a beluga traveled up the Rhine as far as Bonn, many many miles from the Northern sea (click for article with picture). The nation went wild with exitement and did sing:

Was will der weiße Wal im Rhein
Er hat gehört im Rhein soll Wein statt Wasser sein.
Was will der weiße Wal?
Das wissen wir genau:
Der weiße Wal wär gern einmal
so richtig blau

Wolfgang