Here, visitors can enjoy a wondrous mine that is like an underground shrine. Underground, this expansive space with rocks is lit up, and looks completely like a work of art, thanks to the magical atmosphere. It also has a materials exhibition room, which is recommended to visitors who want to know more about Oya stones. There is also a cafe in the Oya stone archives building grounds. Enjoy some coffee after a fun day of exploring the underground mine. A park is nearby, making this a fun area for a day trip.

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