For everyone. The Yosemite Firefall was a man made event where they started a fire at the top and pushed the embers off. This form of entertainment went on for nearly 100 years and was stopped in the late 1960s. Due to the amount of people and the opposite of preserving the natural land.
The natural Firefall was then 'discovered' at a different waterfall location. It's from the setting sun. And, of course, now this is doing the same thing.