NPR logo The Unseen Sea: A Different Side Of San Francisco's Famous Fog

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The Unseen Sea: A Different Side Of San Francisco's Famous Fog

"The coldest winter I ever saw was the summer I spent in San Francisco."

This quote, often attributed to Mark Twain, never made much sense to me until I actually experienced sundown in San Francisco. As any Bay Area resident knows, it can be 90 degrees during the day, but the minute the sun drops, the temperature plummets and the fog rolls in. Every evening, as if on cue, that heavy, wet blanket moves in to tuck the city to sleep.

Simon Christen lives in Oakland and has been pointing his camera across the bay at San Francisco for the past year, taking time-lapse photos of the city. "About halfway through the project, the fog became the main subject," he writes in an e-mail, "and I tried to find locations to highlight it."

How cool is it to see how the fog seems to lap against the mountains like waves on a beach, and how much it churns and boils overhead? Who knew it was so animated?

P.S. Those scenes where it looks like the sun is passing over the city lit up at night? That's actually the moon under long exposure!

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