The Futara Spiritual Spring is located after you passed the Torii gate of Mitomo Shrine. The water comes from cave of Mt. Korei, which is located on the back of Honden main hall. People believe that spring has two effects. That water might have a spiritual effect on eye disease. In addition, that water makes a tasty sake.

Ceremony for the completion of pond was taken on October 13th in1971. The water is transparent and colorless, water temperature is 12 Celsius degree, no bacteria, and hardness is 26.68 as a result of examination. That number tells us that the water is adequate to drink.

Also, there is a teahouse called Azumaya, and you will have a green tea, which is made by Futara Spring.