Lower Tahquamenon falls. More specifically, the lower of the two main falls on the north side of the island which the river runs around both sides of. The majority of the water runs here, around the north side. While on this side, it makes two drops, on the south side of the island, it makes a single larger equivalent drop,for a more impressive falls.

I've you've been there, this is the first observation deck that heads off toward the river after you start the boardwalk along the river. On the other side some of the deck for the path that runs around the island is visible, complete with snow up to the railings. No way to get over to the island this time of year, unless you want to see if you can walk over without finding a thin spot in the ice. If that happens, the current would pull you under away from the hole. Hope you can hold your breath until spring.  

:-)

As a circumstance of how the ice has formed, the water is redirected so as to form a somewhat fearsome-looking whirlpool of ice and water. Water was entering at the right, curling around the far side, at the top of the picture, and going counterclockwise. I counted about 4 seconds for the floating ice to make a full revolution in there.

In yellow, I've marked what appeared to be a red inflatable rubber ball going around among the ice chunks. In blue, what as best I could tell from the distance seemed to be a dead beaver frozen into a chunk of ice. It is just a dark spot in this picture, but at times it would turn a bit and I could make out more of the dark brown object, though never enough to be absolutely positive. It was about the right size, but perhaps it was just a wad of roots or chunk of dead wood or something, even if it did seem to have a foot and almost a tail visible.
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