Go south of Page about a mile or two and there is a parking lot on the west side of the Flagstaff Hwy. It's about a 1/4 of a mile hike to the edge of the canyon.
This image was achieved by waiting for the sun to go down to get even lighting and more saturation of color, and by using a long exposure. I am afraid of heights, so I had to crawl up to the edge here and lean my tripod over the cliff to get most of the water in the shot! It is a 1,000 ft. drop-off here!