image candidate for unsolvable puzzle?

Guess what this is........


I was photographing the ore dock when I looked down and saw these vivid designs in the water. I had to act fast as boats were putting in, ruining the calm waves that were reflecting these colors. .

A lot of people have a fascination with these docks, used to load coal and ore into the freighters. It's easy to see why, they are huge. If you can see at the top, those are rail cars that give you a sense of scale. Marquette has two docks, with the upper harbor one still in use today. Most of the time you see pics of the docks with freighters right next to them. This pic of dock only really conveys how big this thing really is. Marquette Upper Harbor Ore Dock