Here's a B&W clip from the 1940s showing a woman spending time in nature. 

We first see the woman looking at a large magazine called "Nudism." She's sitting in a grassy field on a blanket while wearing a dress.

Soon, the woman is removing her clothing as she tries to get comfortable on her blanket -- twisting and turning and posing. It is almost as if she is purposefully posing for someone. 

Later the nude woman stands up and walks into the distance while carrying a towel. She finds a shallow pond, enters it, and gets herself wet. We can see her freeze up, raising her shoulders in response to the cold water. 

The nude woman eventually walks out of the pond, walks through a forested area, and finds a spot to stop and dry herself off with her towel.