Yosemite Illusion Looks Like Waterfall Of Fire

A rare phenomenon has people snapping pictures in Yosemite National Park.

It's called a firefall. The optical illusion looks like fire flowing off a cliff.

Park rangers say it's the sun glowing through a waterfall.

The angle of the sun has to be just right, and it happens only for a couple of weeks in February.

In:
• Fire