Officials said this year's firefall is particularly stunning.
"The waterfall is bigger than it has been in a long time due to all the rain and snow we have received," National Park Service spokesman Scott Gediman told CNN.
Gediman said photographers have been flocking to the El Capitan picnic area to snap photos of the falls at sunset.
"I've seen a few photographers get here at 9 a.m. to claim their spot for the sunset," Gediman said. "All we ask is you be respectful to the park and make sure what you packed ... you pack up and take out."