Maybe it's because pets are allowed on outdoor sundeck on the designated pet atea via starfish and the horn will scare the animals ...thats probably the reason why
@@karaokebackgroundplaylists9878 The ship's horn would have sounded upon departure - it's mandatory under Transport Canada rules. I've travelled on that very ferry with dogs and I lived on a Gulf island so took that ferry hundreds of times....Marine safety isn't compromised because of 'scared animals' lol