Now's the time to see Yosemite's Bridalveil Fall lit up like a rainbow

"In spring and fall, as the sun lowers its position on the horizon, late afternoon sunlight turns Bridalveil Fall into a rainbow," Yosemite National Park reports. "In spring and fall, as the sun lowers its position on the horizon, late afternoon sunlight turns Bridalveil Fall into a rainbow," Yosemite National Park reports. Photo: Yosemite National Park Photo: Yosemite National Park Image 1 of / 12 Caption Close Now's the time to see Yosemite's Bridalveil Fall lit up like a rainbow 1 / 12 Back to Gallery

As the sun lowers its position on the horizon in fall, a dazzling natural phenomenon occurs.

Late afternoon sunlight shines through Bridalveil Fall in Yosemite National Park, lighting up the stream of water with a rainbow of colors.

A Facebook post from Yosemite notes the rainbow can be observed when looking at the waterfall from Tunnel Road at about 4 p.m.

While most of Yosemite's waterfalls usually run dry at the end of summer and going into fall, Bridalveil often has a trickle of water.

"Bridalveil Fall drains a heavily forested area with deep soils," a statement from the park explains. "Those soils hold a lot of water that slowly moves downhill into the creek, keeping it flowing even when no snow remains."

ALSO: Tips and tricks from 50 years of loving Yosemite

This spectacle is usually on display in September and early October and occurs again when the sun is similarly positioned in spring.