Shokawa in Toyama Prefecture is a town dominated by water. Water runs from the Hida Mountains into the Sho River and through Mt Goka to appear again at the edge of Tonami Plain, where Shokawa is located. Abundant water also runs to Tonami Plain from mountains in Nanto. Waterfalls and clear water springs occur, too, at many places along the slopes and at the foot of the mountains.

Shokawa features one of Japan's 100 best water sites: Uriwari-no-shimizu, which means 'Split-Melon Clear Water'. To find this site in Shokawa, look for some Buddha stone statues in a shallow cave near the road under a hilly terrace in Iwaguro housing development. In the cave, clear water wells up under the gaze of the Buddhas.

About 600 years ago, legend has it that Shaku-shonin, a founder of Zuisenji Temple in Inami, was visiting this area when one of his horse's hooves suddenly broke through the ground and released clear water. The 'split melon' name refers to a story that a melon once split naturally when cooled in the water here. The water never stops even for extended periods of hot weather, and is thus worshiped as holy water.