Stumbled across a channel on YouTube that has lots of videos of cargo ships, big cargo ships, arriving at the Duluth Harbor. Most of them have views of the two breakwater lights, North and South.

Try this one, there are people surfing the lake waves! Surfs UP! The Gales of December in Duluth.

There is a webcam from the lighthouses too - Duluth Lighthouses Webcam

All the best,
Rick