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Hang Son Doong

Following on from the expedition’s talk at Hidden Earth this year, National Geographic published an article last month about the exploration of  Hang Son Doong in Vietnam, along with a series of spectacular photos by Carsten Peter.

The cave is reputed to contain the world’s largest passage – 2.5 miles long, 300 ft wide and 600 ft tall!

Conquering an Infinite Cave [National Geographic]
Photo: Carsten Peter, National Geographic