Guided walk through the unique formation of Oya rocks and surface mining (5600m)

Guided walk through the unique formation of Oya rocks and surface mining (5600m)

Join us on a walk through the various, unique formation of Oya rocks in the Oya region, as well as a tour of surface mining.

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※⑧There will be an additional fee for the tour of surface mining.
For inquiries, please call 080-7754-1965

※Please contact us at least 1 week before the day you wish to attend the tour.

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City Guide Association

City Guide Association

Our tour covers the entire Utsunomiya City, with a focus on the Oya area.
We provide about 1,000 tours every year where visitors are immersed in the Oya stone culture.

☆Recommended for those who want to learn about Oya stone culture in the Oya area

“Would you like to experience the fascinating Oya stone culture? We want you to discover not only the classic underground labyrinth but also the history and lives of people who work there by walking through the Oya area with us. You just might find Utsunomiya or Japan that you have never known before. Come and join us on a journey of discovery!

  • Address3-1-4 Chuo, Utsunomiya City, Tochigi Prefecture
  • Phone080-7754-1965Fax: 028-645-3041
  • Hours9:00-17:00