In mid-to-late February, Yosemite’s Horsetail Fall can glow orange when it’s backlit by sunset and the sky is clear, thus creating the impression it’s on fire.

Visitors flock to the national park in hopes of capturing stunning images of the “firefall.”There have been spectacular sights this year because of the heavy rains swelling the typically small winter waterfall over the eastern edge of El Capitan.

“Although entirely natural, the phenomenon is reminiscent of the human-caused Firefall that historically occurred from Glacier Point,” states the park’s website.

Below are images taken by Instagram users.

 

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A post shared by Jinchao Lyu (@jinchao.explore.nature)

 

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A post shared by Aniket Ghodke (@aniketghodke1312)

Reservations Needed for Friday-through-Sunday Entry

The downside to firefall season is it can snarl traffic and parking, and tax the park’s natural and cultural resources, park officials say.

Thus, reservations are required for entry to Yosemite 24 hours per day on the weekends of Feb. 17-19 and Feb. 24-26.

In addition, reservations are required at Camp 4, Wawona, and the Hodgon Meadown Campgrounds throughout February.

You can learn more by reading through the park’s Frequently Asked Questions section.

Watch: Yosemite’s Natural Firefall