This is a spring located in Raiun Park, a hidden gem known by those in the know. It is said that snow accumulated on Mt. Shari has been gushing out from the spring for several decades, and the water has a flow rate of 5 tons per minute.

The water temperature is around 6 degrees Celsius, cold in summer and never freezes in winter, and is widely loved as "famous water of Raiun". The name of the area, "Raiun," means "coming luck" in Japanese, and many people come from far and wide to drink this water, believing that it will bring them luck and make their wishes come true.