Watch: Yosemite's Horsetail Fall Lights Up Like Fire

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Every February, a phenomenon called firefall lights up Yosemite National Park's Horsetail Fall, causing the waterfall to appear as if it's spewing lava rather than fire, and the result is breathtaking.

The waterfall lasts for about 10 days each February and causes the water to appear as a stream of golden lava, the International Business Times reports. The phenomenon usually lasts for a few minutes at sunset, and happens when the sun aligns with the waterfall. 

Sangeeta Dey hiked to Yosemite Sunday to see the firefall, and captured gorgeous video footage that has been making the rounds on the Internet.

"This year, I feel fortunate to have been one of the firsts to witness it," she wrote on Instagram. "Very surreal!"

Dey told the IBT that she was surprised to see a small crowd when she arrived at the park. The park had predicted peak dates for the firefall Thursday through Feb. 23, but Dey went earlier because “storms were moving in making it impossible to see the firefall” later in the week, she explained.

“I took a chance by coming in on 12th, which is four days earlier than the anticipated date of firefall. Thankfully, mother nature does not follow the calendar,” she added.

See the beautiful phenomenon in action above!

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