Horseshoe Bend
This is a very easy hike on Highway 89 about 2 miles South of the Walmart in Page, Arizona. It's .2 miles South of mile marker 545. The hike is .5 miles long (the sign at the trailhead says .75 miles, Google Earth says .53 or so) and there is a small dinosaur track about 50 yards from the end. Thousands of people probably walk right by it every year and never notice it!
You will need a 24mm lens or wider to get the whole overlook in. Consider using a polarizer to bring out the color of the water. It is easy to overexpose here, I suggest you bracket. Early afternoon in late Spring/ early Summer is the best time to avoid shadows.
It's a 500 feet drop to the Colorado river here so be careful. If you really want to see the Colorado river here from the bottom you can book a float trip that comes up from Lee's Ferry!.