Ключевые слова: am phu, am phu cave, ancient, asia, asian, beautiful, big, bright, buddhism, cave, cavern, caves, caving, da nang, danang, decoration, deep, dong, geological, geology, golden, hill, inside, interior, landmark, landscape, large, limestone, marble, marble mountain, marble mountains, mineral, mountain, mountains, natural, pagoda, religion, rock, sacred, sanctuary, shrine, stone, temple, tourism, tunnel, underground, viet nam, vietnam, vietnamese, worship,