Where is the world’s largest cave by volume?
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The world’s largest cave by volume is the Son Doong Cave, located in Phong Nha-Kẻ Bàng National Park in Vietnam. Discovered in 1991 and opened to the public in 2013, Son Doong Cave is over 200 meters (656 feet) wide and more than 5 kilometers (3.1 miles) long. The cave contains its own ecosystem, including a jungle and a river, and its vast size allows for some of the tallest stalagmites in the world. Son Doong Cave has become a popular destination for explorers and tourists alike.