Lake Okushima(Okushimako) is a Must-Visit Site in Shim Onsen!

Lake Okusima (奥四万湖) Lake Okushima is a famous place in the Shima Onsen resort where you…

Amazing Blue /Shima Blue

As you can know because it is inside Joshinetsu Kogen National Park, Shima Onsen is the…

The Water Color, Called “Shima Blue” is the Treasure of Shima Onsen

Among the nature at Shima Onsen, we are proud of the color of the water of…