Top 1 in Top 10 Famous Tourist Attractions in Vietnam.
Vietnam's Ha Long Bay Is a Spectacular Garden of Islands | National Geographic
Located in northern Vietnam, 130 kilometers east of Hanoi. This extraordinary bay is home to more than 2,000 jungle-clad islands filled with charming caves, rock caves, limestone pits, and lakes.
Many islands formed these wonderful shapes after centuries of natural carving. Ha Long Bay has light green seawater. Its exposed limestone rocks are like dragons in the water. Limestone mountains rise from the sea, and the mist diffuses in the mountains, like a scene in a fantasy novel.