There are two ways to get to the overlook. One is by way of a boardwalk from a parking lot off the park road and the other is a 1/2 mile round-trip hike from Mather Lodge. We tried both ways, and I enjoyed each perspective. From the boardwalk:
From the trail:
I've heard some people have been disappointed in the waterfall depending on what time of year they've gone. It's definitely recommended to go in the spring or fall when there's been rain. Our early June trip gave us a wonderful experience.
The Younger Son took some video from the boardwalk: