The annual 'Firefall' at Horsetail falls is one of the Parks' most amazing spectacles and brings out thousands of visitors each year.
Time-lapse footage from last week showed a waterfall illuminated by the sun.
RELATED: Yosemite's firefall returns to the National Park with new rules for visitors
The "firefall" can happen anytime between mid-to-late February, when the setting sun hits Horsetail Fall at the right angle to create the illusion of a lava-like stream.
But Yosemite officials said most of the year, Horsetail Falls is one of the park's less-remarkable waterfalls.
Reservations are usually required to enter Yosemite on certain dates and especially during the Horsetail event. You can see what's available by clicking here.
If you're on the ABC7 News app, click here to watch live