Hokkaido Official Tourism Site HOKKAIDO LOVE!

Experience Rishiri Island’s purest water, a legendary spring recognized as one of Japan’s 100 Remarkable Waters.

Located near the third station of the Oshidomari hiking trail on Mt. Rishiri, Kanro Sensui stands as Japan's northernmost celebrated spring. This pristine water begins as snow and rain atop Mt. Rishiri, slowly seeping through volcanic rock layers. This natural filtration process takes about 20 to 30 years to perfect every single drop. The spring earned its name—which translates to "sweet dew water"—because those who drink it describe the flavor as remarkably sweet. It is characterized by its mellow, crystal-clear taste and total lack of impurities.

To reach this hidden gem, you will follow an unpaved forest trail starting from the Rishiri Hokuroku Campground. As you walk, the deep silence of the forest envelops you. The only sounds are the gentle bubbling of the spring and the rustle of leaves, while the cool, fresh scent of the woods fills the air. While it serves as a vital hydration point for hikers, Kanro Sensui is much more than a simple water source; it is a place where you can feel the vital energy of the island through all five senses. Don’t miss the chance to taste this gift of nature, available only at its source.