About 8 below zero early in the morning. This means it's time to go outside to photograph the sunrise.
Later in the day, when the temperature climbed to zero, large areas of the lake froze.
The next morning the wind rose, crushing the ice against the shore.
It's true that you can't step in the same river twice. You also can't look at the same lake twice.
It was tiring to be out in the cold, helping each other wrestle the camera gear up and down the stairs in the snow.