A cruise ship sailing around Lake Michigan ... sunset/dinner cruise is very popular although I think this one is way off north of the usual itinerary. Usually, they cruise around the downtown area. The black structure on the right is one of the water intakes for Chicago's water system.
BTW, this is way in the middle of the lake, maybe two or three miles into the lake - took this with the 200mm lens from my balcony. I was really intrigued by the color of the sky which had this pinkish hue.
Submission #11 to 52 sunsets