We were walking back to the car after spending the final hour of daylight in the area of the Treßsee and had to pass this small lake. The sun had disappeared and fog began to rise, hovering in a thin layer above the totally still water. The ambient was totally quiet and peaceful.
To capture this I had to take a long exposure, as it was getting dark quickly. Even with my tripod this was harder than I thought, because the ground was totally swampy and soft, shaking with every movement of my feet. It took some pressing and the timer of the camera (so I could take a quick step back) to have the tripod totally motionless for the 8 second exposure.
Photo data: Pentax K20D, 50-200 mm lens at 160 mm, f7.1, 8 seconds and ISO 400.