Akkadō

Akkadō (安家洞), located in Iwaizumi, Iwate Prefecture, in the Tōhoku region of northern Japan, is the longest limestone cavern in Japan, with a measured length of 23,702 metres (77,762 ft). The cave system was designated as a natural monument by the Japanese government in 1980. Since 1991, a portion of the caverns have been open to the public for part of the year.

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Website, 

Wikimedia, Wikidata
solutional cave, show cave, Sanriku Geopark, Japan, 

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Location: 39.9836, 141.736, KML, Cluster Map, Maps,
3 places

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  Akkadō ⓘ
  longest cave in Japan, a limestone cave in Iwaizumi Town, Shimohei District, Iwate Prefecture, Japan

• 

  Ryusendo Cave ⓘ
  solutional cave in Iwaizumi, Iwate, Japan

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  Uchimagi Cave ⓘ
  limestone cave in Kuji, Iwate, Japan

Frameless

Akkado

Akkado SHINDEN

台風10号被災の岩手県岩泉町安家。お手伝いの後、ほぼ復旧し再開済みの安家洞を見学させていただく。 (30954758045)

Type	Subtype	Date	Description	Notes	Source
site	cave		Akkadō	show cave, solutional cave	Wikidata
site	cave		Ryusendo Cave	solutional cave, show cave	Wikidata
site	cave		Uchimagi Cave	solutional cave	Wikidata
commons	image		Akkado		Commons
commons	image		Akkado SHINDEN		Commons
commons	image		台風10号被災の岩手県岩泉町安家。お手伝いの後、ほぼ復旧し再開済みの安家洞を見学させていただく。 (30954758045)		Commons