Where is Phong Nha – Ke Bang National Park?, Hà Nội, Quảng Bình, Đà Nẵng, Huế, Which activity helps protect Phong Nha – Ke Bang?, Littering, Cutting trees, Protecting forests, Hunting animals, Why do many tourists visit Phong Nha – Ke Bang?, To see nature and caves, To play football, To study in universities, To sing songs, Which of these is NOT in Phong Nha – Ke Bang?, Caves, Forests, Rivers, Icebergs, Choose the correct answer about what makes this UNESCO World Heritage Site special!, Caves and forests, Skyscrapers, Factories, Beaches

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