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Ha Long
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Jagged limestone karst island with patches of green vegetation rises from the water in Ha Long Bay, Vietnam; a red and white navigation marker stands on the right side of the island.
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Also called:
Hong Gai
Also spelled:
Hon Gai
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Ha Long

Vietnam
Also known as: Hon Gai, Hong Gai
Written and fact-checked by
Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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History

Ha Long, port city, northeastern Vietnam. Ha Long lies along Ha Long Bay of the Gulf of Tonkin, about 25 miles (40 km) northeast of Haiphong. It is an export centre for coal mined at nearby Quang Yen, the site of anthracite deposits that are the largest in Southeast Asia. Other economic activities in the area are rice farming and fishing.

Tourism has grown in importance, as many visitors are drawn to Ha Long Bay, noted for its many strangely shaped limestone inlets and caves and grottoes. A portion of the island of Cat Ba in the bay was made into a national park, and in 1994 the entire bay area was designated a UNESCO World Heritage site. Pop. (1999) 159,231; (2009) 201,990.

This article was most recently revised and updated by Kenneth Pletcher.
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