The Quang Binh administration has revealed that an English potholing team has discovered a cave believed to be the biggest in the world, in the Phong Nha-Ke Bang world natural heritage site.
Most sand dunes in central Vietnam are white, yellow or red; however the dunes in the desert area of Ninh Phuoc District in Ninh Thuan Province shine in different colors, reflecting the lights of sunrise and sunset.