Sơn Đoòng Cave Photos

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Sơn Đoòng Cave (hang Sơn Đoòng, "Mountain River cave" in Vietnamese) is a solutional cave in Phong Nha-Kẻ Bàng National Park, Bố Trạch District, Quảng Bình Province, Vietnam. As of 2009 it has the largest known cave passage cross-section in the World, and is located near the Laos-Vietnam border. Inside is a large, fast-flowing subte…
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Son Doong Cave Doline

Phong Nha-Kẻ Bàng National Park

Son Doong Cave