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Iwakura Onsen

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岩蔵温泉

Tokyo's only hot spring village features a historical cold mineral spring where legend says ancient royalty once bathed.

Iwakura Onsen
Hanasakijijii at Japanese Wikipedia CC BY-SA 3.0 resized via Wikimedia Commons

What it is

  • The only hot spring village located within Tokyo in Ome City
  • A historical site founded approximately 1200 years ago
  • Legendary bathing spot of Yamato Takeru with armor stored in a stone warehouse
  • Mamadaya remains the only operating inn as of June 2026

What to see

  • A designated historical hot spring source classified as a sulfur and alkaline simple spring
  • Cold mineral spring water originating at 20 degrees Celsius
  • Traditional accommodations at the last remaining inn in the village

Getting there

  • Take a Seibu or Toei bus from Hanno Station
  • The bus journey takes approximately 20 minutes to reach the area

Notes written by Japan Gems from facts in Japanese Wikipedia.

Where it is

Iwakura Onsen Open in Google Maps

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