The lake is a warm lake, and in the mornings the temperature of the water is usually warmer than the air, resulting in this rising of mist off it's waters. The long exposure here softened them and gave them a luminescent glow. I got lucky with this file. I did a long exposure as a second thought. My goal was a regular exposure, and in my haste, I did not set the white balance correctly, and once I saw the result, I didn't want to take the time to try and fix it because the light was passing fast. My raw file for this shot is almost completely cyan colored. Really quite a magic trick I pulled here getting the color back out of it, but I have RAW technology to thank!
Anyway, enjoy the image!