I just got back from New Zealand, and saw this phenomenon at "that wanaka tree", which is surely the most photographed tree in the country, if not the world. I got up two mornings in a row for sunrise; the sky was cloudy so there was no color, but each time there were at least ten other photographers out there jostling for position to take the same shot. But move a few dozen feet left or right and there's another alignment for your own shot.
This is what I ended up with, which I think is pretty good. Didn't have a 10-stop ND big enough for my 70-200, but a polarizer and pixelshift did pretty well.
Loved that Pentax weather sealing on hikes in the spitting rain or near waterfalls.