09/09/2026
For a few minutes each year, Yosemite can make ordinary water look like molten lava.
Horsetail Fall is a small seasonal waterfall that drops about 1,000 feet over the eastern edge of El Capitan. Most of the year it attracts little attention, but during a short window in mid to late February, the geometry of the setting Sun can transform it completely.
The effect requires several things to happen at once. There must be enough snowmelt or recent precipitation to keep the waterfall flowing, the western horizon needs to remain clear, and the Sun must reach the waterfall at precisely the right angle. Even thin clouds or haze can make the glow disappear.
When everything lines up, the surrounding granite falls into shadow while the last orange sunlight continues striking the falling water. For several minutes, the illuminated water and mist can appear bright yellow, orange or deep red against the dark cliff.
Despite the nickname “Firefall,” nothing is actually burning. The name also has an interesting history: Yosemite once had a completely different, human-made Firefall in which burning embers were pushed from Glacier Point. The modern Horsetail Fall spectacle is entirely natural.
It has become so famous that thousands of people can gather to watch it. In 2022, more than 2,400 visitors were recorded around the viewing area on a single day, forcing the park to introduce special measures to protect riverbanks and vegetation.
Nature doesn’t need lava to make a waterfall look like fire. Sometimes all it needs is water, rock, sunlight and a few minutes of perfect alignment.