Ha Long bay covers an area of 1,553 square km with over 3000 limestone islands

Ha Long bay covers an area of 1,553 square km with over 3000 limestone islands that rise from the clear, emerald waters of the gulf of Tonkin near the Chinese border. Ha long Bay is one of the natural marvels of Vietnam. Due to its typical terrain of sea depression dotted with limestone islands, 300 square km, it was recognized as the world natural heritage by UNESCO in 1994. Ha long bay is a truly remarkable destination, Come and see what the Vietnamese call -thedescendingdragon'