Ludington is also the only harbor that doesn't have a white light in the lighthouse. The south breakwall has a blinking red strobe which is correct as it is on the right side on your return.
The lighthouse however blends in with the lights in the city. This has caused issues in the past. Especially if you are headed south. You could see red and white and think you were aimed at the entrance. They changed the light to a strobe green.