Here are some winter and water photos for you. :-)
The Kiessee Lake - a flooded gravel pit which had been in use until 1955 - is a recreational park not far from my flat, so I do a bit of walking there frequently.
I brought my camera along today to get some winter photos from our New Year's walk I did together with my father. And a lovely sunny afternoon it was, too, albeit cold and rather windy. It didn't prevent a lot of other people walking along the lake as well, though I could photograph around them.
The temperature had been a bit below zero those last days and the lake starts to freeze over, though I would not recommend anything heavier than a swan to walk on that treacherous layer of thin ice.
There are rare winters when the ice is safe for skating. In summer, the lake often swarms with canoes and other small boats. There is a parking lot at the north side of the lake - just well my father can park his car near my flat since the parking lot is always full.
The surface of the lake is 15 ha and the shores about 2 miles, but there are additional ways in the surroundings, for example along the Leine/Flüthe flood canal which is connected to the lake by a weir and several basins.
The weir, dam and canal system of Leine / Flüthe (an estuary of the Leine) and Kiessee lessens the danger of floods in the town of Göttingen, though the road running directly along the north side of the park still gets flooded when the Leine river rises too high.
I took some spring photos of the Kiessee a few years ago, and I also got some summer photos of the lake and the canal in my archives.