this post contains a set of images that I took at the Gulfoss waterfall. The first image shows you the complete waterfall. See the people on the bottom left of the image. I am told that they provide a sense of scale. I have never thought of images and people this way before. It is something that I need to explore further. Usually, I avoid people when taking images but I am beginning to change my mind.
The filenames of the images are self-explanatory. If using the vOICe to view them, try edge detection toggled with function key F7 to give you a crude representation of what the waterfall sounds like.