These Breathtaking Photos of Vietnam's Caves Bring Out the Armchair Spelunker in Everyone

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These Breathtaking Photos of Vietnam's Caves Bring Out the Armchair Spelunker in Everyone,
April 6, 2015,
By Jeff Campagna
smithsonian.com,

Adventure photographer Ryan Deboodt does his best work in Earth's underbelly. His otherworldly photographs of the caves of Vietnam's Phong Nha Ke Bang National Park illuminate a vast subterranean realm.

Video length: 06:18.