ApacheWarlord

I would like to create a mod for the ships in Skyrim. My idea was to create "routes" that ships remotely traveled on (a bit like a guards patrol route) for ships, so that when you looked out to sea you could occasionally see a ship traveling from port to port on it's own. I know there's dozens of mods to pilot boats yourself, but anyone have any idea how to make them travel routes on their own? My only tool is the ck and I have somewhat limited experience.