son hang doong cave
in Vietnam is the largest cave in the world.
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#watercourse#불빛#underground_lake#erosion#Rock#darkness#Vietnam#light#formation#물#cave#pit_cave#sondoong#동굴#암흑#Water
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bhabanipujaribhabanipujari
in Vietnam is the largest cave in the world.
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bhabanipujaribhabanipujari
