Halong Bay is a sea bay in the Gulf of Tonkin on Vietnam's northeast coast, about 170 kilometers east of Hanoi. You travel there to cruise by boat among hundreds of forested limestone karsts, visit stalactite caves, and spend a night on board on the water.
Hạ Long means 'descending dragon.' According to UNESCO, the bay is considered the most extensive and well-known example of a submerged tower karst landscape worldwide. It has been a World Heritage site since 1994, and in 2023, the site was expanded to include the Cát Bà Archipelago, now encompassing 1,133 islands and islets across 65,650 hectares. To the northeast lies Bái Tử Long Bay, and to the south, Lan Hạ Bay.
The starting point is Hạ Long on the bay's north shore. Excursions follow designated routes set by the bay administration, which, depending on the route, visit caves, swimming islands, kayaking areas, and pearl farms. In floating villages like Cửa Vạn, fishing families lived on boats; since 2014, many of them have been relocated to land.
Sights in Ha Long Bay
Discover the most important sights and attractions
Natural Feature
1Ti Top Island
This is the only island in the bay named by Hồ Chí Minh, following his 1962 visit with Soviet cosmonaut German Titow. You can swim or climb the island peak; from there, you'll overlook the surrounding rocks.
The cave on Bồ Hòn Island is the largest cave discovered in the bay to date. The first chamber contains a freshwater lake, and the last features a stalagmite whose shape resembles a Buddha. Local folklore connects it with the palace of a Dragon King.
The tunnel-like sea cave opens into a tranquil lagoon, enclosed by rocks, which you can explore by rowboat or kayak. Macaques live in the area, and the cave is also an archaeological site of the Soi-Nhụ Culture.
The name means 'Cave of Wooden Stakes': Here, remains of the stakes are said to have been stored, which the Vietnamese used in the 13th century to stop the Mongol ships. Legend connects the neighboring Thiên-Cung Cave with the seven-day wedding of a Dragon King.
The Labyrinth Cave is on the southeast side of Lòm Bò Island and features four main chambers and a lagoon. Like Luồn Cave, it is an archaeological site from the Soi Nhụ period and the endpoint of Boat Route 2.
From Hanoi: The expressway opened in 2018 takes you roughly 2.5 to 3.5 hours to cover the approximately 170 kilometres. Express buses, limousine vans and luxury buses are available, and many cruise operators arrange transfers from Hanoi.Ports: Most overnight cruises depart from the international passenger port on Tuần Châu Island, about 2 kilometres west of Hạ Long. Day boats and some other cruises leave from the Ha Long International Cruise Port in the city.In the Bay: Excursions follow fixed routes (VHL1 to VHL8), each with its own entry fee. Route 2, for example, goes from Tuần Châu to Ti Tốp Island, Sửng Sốt Cave and Luồn Cave, which has a kayaking area. For safety on boat trips, see the UK FCDO Travel Advice (gov.uk/foreign-travel-advice).