Sơn Đoòng – World’s Biggest Cave

On September 14, 2013 by Lazer Horse
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There’s a good few contenders vying for the accolade of largest cave in the world, the newest in this stagnant race is Sơn Đoòng cave in Phong Nha-Kẻ Bàng National Park, Vietnam. Sơn Đoòng was only discovered...

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