Up in the Japanese Alps, Takayama is a small town in Gifu Prefecture ... On the other side of the Miya River, Kokubun-ji temple, founded in the 8 th century, is a must-see if you want to explore ...

In comparison, the Shinanogawa, Japan’s longest river ... and the 15-meter-long Higashimachi-Shionogawa river administered by the Mamurogawa town office in Yamagata Prefecture.