Kumaya Cave is located in Dana, Iheya Village, Shimajiri County. It was formed over 280 million years ago by erosion of sedimentary rocks. The interior of the cave is about 10 meters high and stretches about 40 meters from its mouth. It has been designated a Prefectural Natural Monument. The Edo Period scholar, To Teikan, advocated the theory that the cave was Amano-Iwato, a cave that figures in early Japanese mythology, and it is also known as the southernmost land of the Amano-Iwato legend.
- Okinawa Shimajiri-gun Iheya Mura Dana
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