Halong, a natural wonder in northern Vietnam, is about a three-hour drive east of Hanoi. The Bay has over 1,600 limestone islands and spans 1,500 square kilometers. As a coastal city with a 50 km shoreline, it has great tourism potential and is 160 km from Hanoi. Bai Chay, the tourist area, and Hon Gai, the local area, are connected by Bai Chay Bridge. A UNESCO World Heritage Site since 1994, Halong Bay is known for its biodiversity and stunning scenery, often featured in movies.