Towering limestone pillars and tiny islets topped by forest rise from the emerald waters of the Gulf of Tonkin. Designated a World Heritage Site in 1994, Halong Bay's scatter of islands, dotted with wind- and wave-eroded grottoes, is a vision of ethereal beauty and, unsurprisingly, northern Vietnam's number one-tourism hub.
Hạ Long Bay is a popular travel destination in Quảng Ninh Province, Vietnam.
According to legend, Halong Bay was created when a dragon sent by the Jade Emperor. And the name Hạ Long means exctly that: descending dragon.
The bay features thousands of limestone karsts and isles in various shapes and sizes. Ha Long Bay is a center of a larger zone which includes Bai Tu Long Bay to the northeast, and Cát Bà Island to the southwest.
Hạlong Bay has an area of around 1,553 km2 (600 sq mi), including 1,960–2,000 islets, most of which are limestone. The limestone in this bay has gone through 500 million years of formation in different conditions and environments. The evolution of the karst in this bay has taken 20 million years under the impact of the tropical wet climate.
The geo-diversity of the environment in the area has created biodiversity, including a tropical evergreen biosystem, oceanic and sea shore biosystem. Hạ Long Bay is home to 14 endemic floral species[4] and 60 endemic faunal species.
Historical research surveys have shown the presence of prehistoric human beings in this area tens of thousands years ago. The successive ancient cultures are the Soi Nhu culture around 18,000–7000 BC, the Cai Beo culture 7000–5000 BC and the Hạ Long culture 5,000–3,500 years ago. Hạ Long Bay also marked important events in the history of Vietnam with many artifacts found in Bai Tho Mountain, Dau Go Cave, Bai Chay.
In 1962, the Ministry of Culture, Sports and Tourism of North Vietnam listed Ha Long Bay in the National Relics and Landscapes publication.
In 1994, the core zone of Ha Long Bay was listed as a World Heritage Site according to Criterion VII, and listed for a second time according to Criterion VIII.