09/08/2026
Did you know Okinawa has its own "Great Wall"?
If you've ever hiked the Mutayama Trail in northern Okinawa, you might have seen these old stone walls lining the jungle. They’re called Yamashishigaki (山猪垣) — which literally means “Wild Boar Walls."
In 1605, a Ryukyuan official brought sweet potatoes back from China. They grew incredibly well here and became a lifesaving food source for local villages.
But the villagers weren’t the only ones that loved the sweet potatoes. The Ryukyu wild boars came out of the mountains and decimated entire food supplies.
The villagers carried heavy stones by hand all the way from the ocean beaches up into the mountain ridges and built nearly 20 miles of wall using "nozurazumi", a traditional method of stacking natural rocks so that they lock together using only gravity.
If you’ve hiked “Jawbone Ridge”, you’ve probably seen the “Great Wall”.