@xia.nan6: Ha Long Bay is located in the western part of the northern bay of Vietnam and serves as a natural and well-suited port area outside the city of Haiphong. It has a population of approximately 200,000 and covers an area of about 1,000 square kilometers. The economy is primarily driven by tourism and shipping. This bay, characterized by its stunning karst landscape, features thousands of limestone islets, earning it the nickname "The Sea of Guilin." #Vietnam #HaLongBay #GlobalTravel #TravelRecommendationOfficial