Halong Bay is one of Mother Earth’s most amazing natural wonders and one of Vietnam’s most prized treasures in the Gulf of Tonkin, it is about 165km Northeast of Hanoi. The bay covers a total area of 1,553km², including 1,969 islands of various sizes. There are two kinds, limestone and schist, the average geological age of the islands is between 250 and 280 million years old.
While exploring the bay, tourists will feel lost in a legendary world of stone islands which shapes change depending on the angle and the light. There are many names given to islands according to their shapes and forms such as Hon Dau Nguoi (Human Head Islet), Hon Rong (Dragon Islet), Hon Canh Buom (Sail Islet), Hon Trong Mai (Cock and Hen Islet)… But the beauty of Halong Bay does not consist only in the forms of its mountains, islands and the colour of its waters, but also in its infinitely rich system of grottoes and caves such as: Thien Cung (Heavenly Palace Grotto), Dau Go (Driftwood Grotto), Sung Sot (Surprise Grotto), Tam Cung (Three Palace Grotto), Trinh Nu (Virgin Grotto)… Each is a grandiose and refined natural architectural creation.