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龍河洞

香美市, Japan

龍河洞

The Ryūga Cave (龍河洞, Ryūgadō), also known as Ryuga Cave or Ryugado Cave, is a limestone cave located in Kami City, Kōchi Prefecture, Japan. It is one of the three largest limestone caves in Japan, with a total length of 4 kilometers. The cave has been designated as a National Natural monument of Jap

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