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  • How It Works

    HA LONG BAY EXPLORED

    Feb 17, 2022 2 minutes
    WORDS AILSA HARVEY

    n the Gulf of Tonkin, 101 miles southeast of Hanoi, Vietnam, around 2,000 chalky pillars and islands protrude from the sea. These towering limestone rocks are called karsts, and they’ve been sculpted into unique shapes by erosion from the rain and sea. Most of them

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