Phong Nha cave – Nuoc Mooc spring

Phong Nha Cave was first “discovered” in 1899.  In 1992 a group of British scientist joined the Hanoi University on a expedition inside the cave. With the mission to fully explore the cave and document it. Between the 18th of march and the 18th of April several expedition were organized and the group had successfully discovered 7,729 meters of cave with a maximum height of 50 meters and a maximum
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Mooc spring, Paradise Cave