Driving from Meningie back to Coorong Wilderness Lodge, we passed this section of field alongside the road which has flooded with pink water.
I upped the contrast, boosted the highlights and lowered the shadows in the curve, and then lowered the luminance of most colours in the shot. Finally set a graduated filter over the top half of the shot with lowered brightness so that the sky matched the tone of the water. Quite pleased with the shot.
The pinkness comes from an alga in the water which produces carotene. On the way down to the Coorong we passed a lake of it, less intense than this stretch but I had taken a photo of a sign explaining the colouration.