Frank I took this image on an overcast day which in my opinion is the best type of light to photograph water. Taken on a sunny day there would have been washed out highlights in the water and the trees and too much contrast. I used a polarizing filter that reduced the amount of glare on the leaves and satuated their colour. It also enabled me to use a slower shutter speed that produced the streaks(air bubbles) on the surface of the water.
