Peyto Lake is located about 40 km or 26 miles north of Lake Louise along The Icefields Parkway, highway 93N. Then, it's about a 20 minute walk to this viewpoint.
A few days before Peyto Lake froze over for the winter, I hiked to the famous viewpoint through knee deep snow. It was a bitterly cold morning. Slowly, the warm light of sunrise crept down the face of the mountains as a cloud band hovered above and mist rose off the surface of the lake. This is a HDR composite using three separate exposures combined in Photomatix.