One natural wonder of Vietnam is Ha Long Bay. Located in the Gulf of Tonkin, Ha Long Bay is renowned for its breathtaking scenery of limestone karsts and emerald waters. It is a UNESCO World Heritage Site and attracts millions of visitors each year. Ha Long Bay is home to around 1,600 islands and islets, creating a mesmerizing landscape that is truly unique. The towering limestone formations, some of which are hollow and contain stunning caves, add to the allure of this natural wonder. Visitors can explore the bay by taking a cruise or kayak, immersing themselves in the beauty of the surroundings. Apart from its natural beauty, Ha Long Bay also has a rich cultural and historical significance. It has been inhabited by various indigenous communities for thousands of years, and their traditions and way of life are still preserved in the region. Ha Long Bay is a true gem of Vietnam, offering a magical experience for nature lovers and adventure seekers alike.