Halong Bay is perhaps the most spectacular of Vietnam’s natural wonders. Located in the Gulf of Tonkin 170km from Hanoi, it is an impressive collection of nearly 2,000 islands covering an area in excess of 1,500km forming a spectacular seascape of limestone pillars and cliff faces. The breathtaking scenery and unusual geology of the bay led UNESCO to designate Halong Bay a World Heritage site in 1994.
In fact the bay was formed as a result of millions of years of erosion on the limestone rocks. Then when the last ice age finished, the seas rose as the glaciers melted, flooding the entire area transforming hills into the islands we see today.
Many of the forested islands in the bay have hidden caves and grottoes which are easily explored by boat or kayak. Some of the island caves are filled with a colorful stalagmites and stalactites.
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