Vietnamese and Japanese scientists have discovered a volcanic cavern
system in the Central Highlands that they say is as beautiful as the
Manjanggul Lava cave, a UNESCO heritage site in Jeju island in South
Korea.
A system of lava caves including one considered as the longest lava cave
of Southeast Asia has been discovered in the southern province of Dong
Nai, according to researcher Truong Ba Vuong of the Viet Nam''s Institute
of Tropical Biology.
