stalactites akiyoshi cave the umbrellas |
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| navigate by keyword : 200000 adventure akiyoshi akiyoshido akiyoshidou ancient asia cave cavern ceiling dark destination drips dripstone earth factory formation geology historic honshu inside japan japans karst kasazukushi known largest limestone mine monument mystic natural nature park result rock scenic science solutional special speleology speleothem stalactite stalactites stone time tourist umbrella umbrellas underground view yamaguchi years |
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| A stalactite formation known as Kasazukushi, or the Umbrella Factory, is the result of 200,000 years of drips from the ceiling in Akiyoshi-do, Japan`s largest limestone cave |
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