I had no idea about the “Firefall” that occurs at El Capitan at this time of year.

“Firefall” occurs when the setting sun reflects off of Horsetail Falls at a certain angle, making the waterfall emit a fiery orange glow. It is highly dependent on environmental factors: If the skies are cloudy, that orange light will not hit the east side of El Capitan—the vertical rock formation where the falls are located— and the phenomenon won’t occur.

— Viral photos show Yosemite’s “firefall” phenomenon glowing in California

The pictures of this are just amazing.