A few years ago, I was in the Canadian Rockies, travelling around Banff and Jasper National Parks.  The shot for today was taken from an observation platform above Peyto Lake. It was not a great time of day to be shooting as it was close to midday but this really made the turquoise colour of the lake stand out all the more against the lush green of the surround forest, greyness of the mountain face and deep blue of the sky.

This was taken a few miles away, along the river bank above a raging torrent below.  You can make out a young girl relaxing by the river, wearing red, to give you a size perspective of the scene.