The natural phenomenon that makes it appear that lava is flowing over a cliff at Yosemite National Park is back, but only for a few days.
"Firefall" is the name for the natural magic trick that creates the illusion at the park in California. It comes to life when the setting sun causes light to hit the waterfall at just the right angle.
You can only see "Firefall" for a short time in February, and it draws hundreds of visitors each night. How it looks varies from year to year, and relies on how much water is flowing in Horsetail Fall.