What looks like a river here is actually a finger of the lake system that includes the famous Blue Lagoon in Grindavik, Iceland
The blue water really looks like ICE COLD BLUE WATER BRRRRRRRRRRR.
I like the feeling from this shot with the warm evening sky
A really nice photo, one can sense the cold, and yet the dawn gives it the warmth required... I would have saturated the dawn colours a little more to get even more warming effect. I like the way the finger of water draws ones eye in to the shot...
Thanks for the feedback, Andrew and Avi!
These waters actually are heated geothermically and have that dazzling chalky blue color due to the unique mineral composition of their volcanic environs. The basins containing these waters are volcanic rock lined with hardened white silica.
This image was shot in high summer (early July) in Iceland, at around 1 AM local time - the only part of the day when the sun was actually below the horizon! The temps were pretty mild and the lazy pace of evening made for beautiful, slow-changing dusk skies.
So I was able to shoot this scene at great leisure - though in fact for this image I did combine three exposure via HDR using Photomatix.
Patrick, I might get killed over this comment, but I'd try a heavy crop from the bottom to just over that little blip (rock?) in the water on the right edge - just to under the strongest reflection. I like this photo, but not the FG. The middle ground and BG are much more interesting to me, while still retaining a strong leading line.