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From Waterfall To Lavafall: Yosemite's Fleeting Phenomenon

"It's this brief window of light around the third week of February where the sun sets at just the right angle to light Horsetail Fall just as it's sinking,"

Infinite Cave in Vietnam - in Phong Nha-Ke Bang National Park that harbors a jungle inside and was carved by a subterranean river millions of years ago.

Horsetail Fall in Yosemite National Park in Northern California flows only in winter and early spring. Most days this fall has a regular color. But every February, just for a couple of days, this fall turns into the fire. Lit by the sun, Horsetail Fall reflects orange and red rays.