The management board of Phong Nha-Ke Bang National Park announced on April 24th that among the newly discovered, Ky Cave is considered the deepest one in Vietnam with a depth of 320 metres. At Ky Cave’s bottom, there is another cave of 50 metres high and 4 kilometres long. The widest cave named Cua Nho, with several caves of a hundred metres wide. These 41 newly found caves lie within a 20 kilometre long range.
Also, the Director of Phong Nha-Ke Bang National Park said that a NHK movie group from Japan will visit to make a film about Son Doong Cave on April 26th. The film is expected to be shown on the international version of NHK Channel broadcast to more than 200 countries and territories.