Sandan-kyō is a ravine in Japan. Sandan-kyō is a 16-kilometer long ravine along "Shiwaki River" in Akiota, Hiroshima, one of tributaries of the famous Ōta River in Hiroshima, Japan. Sandan-kyō is a part of Nishi-Chugoku Sanchi Quasi-National Park. Sandan-kyō is known for autumn leaves and maples.
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