New Delhi, Feb. 25 -- The Yosemite Firefall is a stunning natural phenomenon that occurs when the setting sun illuminates Horsetail Fall in Yosemite National Park, California, making it appear as though a fiery cascade of lava is flowing down the cliffs. This rare spectacle typically happens for a few days in mid-to-late February when conditions align perfectly.

Horsetail Fall, a seasonal waterfall on the eastern side of El Capitan, only flows in winter and early spring. The Firefall effect happens when:

The waterfall has enough water from melting snow.

The sky is clear, allowing sunlight to reach the fall.

The sun's angle is just right, creating the glowing illusion.

For a few minutes before sunset, the sunlight reflects off the wat...