Unexpectedly, yesterday was a perfect ice day along the river. Not nearly as cold as it was a few weeks ago when the river was almost completely frozen over, but just the right temperature for these delicate ice formations. I think the shore and branches are colder than the water…in other words, the air temperature has to be just right to chill solids to below freezing, but not to freeze flowing water. Then when the water encounters a solid, it freezes on, and then when the water encounters that ice, another layer freezes on, etc. So the shape grows. The little whirlpool shapes are places under the ice where the water flow is actually a tiny whirlpool, standing still against the current of the river, helped to stay in place by the ice already formed above it. Moral of the story: Don’t stand still until you freeze! Sony a6700. Sigma 16-300 at 25 and 74mm equivalent fields of view. Auto Landscape Scene selection. Processed in Photomator and assembled in FrameMagic.