It is such a fanciful and unforgettable scenery for those who enjoy a boat trip around the world heritage site of Halong Bay off the northern coast province of Quang Ninh during autumn days under the mist.

Different shapes of stone islands and caves loom in the thin veil of mist accompanied with the sea breeze, which might give people a feeling of getting lost in heaven. Tourists in that moment can understand the value of a natural heritage that was acknowledged by Unesco in 1994 and 2000