The world's biggest cave ( Son Doong cave ), hiding in the jungles of Vietnam. A team of cavers with a local farmer decided to explore its depths.Howard and Deb Limbert, a husband and wife team from the Speleological began to research the world's biggest cave ( Son Doong cave ) in 2009 and they soon found a place where infiltrated the jungle and sunlight.Darryl Granger of Purdue University and a part of the team, who studied the world's biggest cave ( Son Doong cave ) in 2010, says that in some parts of the cave, you can safely fly a plane.The development of almost 6500 meters of the world's biggest cave ( Son Doong cave ) showed that in some places reaches a height of 200 meters and stretched wide by 80 meters.Despite the fact that there are longer and deeper caves, underground extent do the most enormous newfound cave in the world, beating the previous thus the world record holder - Deer Cave (Deer Cave) on the island of Borneo.