The Telegraph, the expedition recorded contributions Ho Khanh - who found Son Doong cave in 1991: "Khanh delegation led expeditions in the middle of the jungle". But Spillane said: "No one had ever set foot in it, because from the cave there is always a breeze and the sound chillingly roll water from underground river inside".
With the size of 150m width, 200 meters in height and 6, 5 km length surveyed, confirmed this expedition is the largest cave in the world, larger than 2 times in Sarawark Deer Cave (Malaysia) - are considered world number one earlier.
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