"It was so quiet I could hear my pulse in my ears at night, which became the thing that haunts me most," says National Geographic photographer Pete McBride. "Now when I hear my pulse, it takes me right back to being beneath the rim." https://on.natgeo.com/2DJCDXR

"It was so quiet I could hear my pulse in my ears at night, which became the thing that haunts me most," says National Geographic photographer Pete McBride. "Now when I hear my pulse, it takes me right back to being beneath the rim." https://on.natgeo.com/2DJCDXR 

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