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13th Annual Smithsonian Magazine Photo Contest Natural World
Son Doong Cave

A 5-day trek through Hang Son Doong, the largest cave in the world. Located in Phong Nha-Ke Bang National Park in the Quang Binh province of Central Vietnam

Photo Detail
Date Taken: 04.2015
Date Uploaded: 11.2015
Photo Location: Phong Nha, Vietnam
Copyright: © matthias hauser