How was Halong Bay Vietnam formed?

How did weathering and erosion form Halong Bay?

During the Jurassic and Cretaceous Periods — around 200 million years ago — the area shifted and uplifted again and became mountainous highlands, exposing the limestone to the elements. The limestone eroded to shape the karst landscape of Halong Bay, forming millions of small caverns and canyons.

What animals live in Halong Bay?

Some of the wildlife found on the islands include: monkeys, birds, lizards, and even antelopes. There are 450 different mollusks and 200 different species of fish in Halong Bay. Some of the islands have permanent residents and tourism businesses. Most of the islands in Halong Bay are limestone.

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