'It's a photo orgy': is Yosemite's rare firefall too beautiful for its own good?

Every February Horsetail Fall is lit by the setting sun, bringing thousands of people to Yosemite to watch the phenomenon

Aaron Meyer vividly remembers his first firefall. The spectacle of Yosemite's famous Horsetail Fall lit up by the setting sun, which lasts for just a few minutes per night for a few weeks in late February, is sought out obsessively by photographers like him.

"The clouds opened up just before sunset and it looked like someone had taken a match to the waterfall, you watched it go light up from top to bottom," he says of his first visit in 2011. "Everyone erupted in cheers; it was the most amazing thing I'd ever seen."