One of my favorite experiences from my Fall trips was spending a chilly sunrise at the Mabry Mill along with about 10 other photographers. A couple came and went over that time, but a few, like me, got there well before sunrise and stayed until about an hour after. I took dozens of shots of roughly the same composition, but wanted to make sure I walked away with at least one clean one I could share.
The cool thing here was that the wheel would stop for a couple minutes until it built up enough water to make it turn and dump it's contents. So I tried to get shots of both the steady wheel and the water dump. I preferred this view. It beat the previous night when the wheel turned with just a trickle of water so long exposures ended up with blurry wheel with no payoff of the water.