National Geographic writer captures exceptional photographic footage nearly 3,000 feet below the surface of the earth on an expedition to Dark Star, a massive underground cave situated in one of the most remote places on the planet.
The post Climbers explore the ‘Underground Everest’ known as Dark Star appeared first on Digital Trends.
from
http://www.digitaltrends.com/outdoors/dark-star-exploration/
from
http://ifeeltechinc.blogspot.com/2017/03/climbers-explore-underground-everest.html
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