Mountain stream of River Kurokawa formed ravine, giant rocks and boulders since ancient times. It is renowned spot for viewing fireflies in early summer and enjoying Japanese maple trees in autumn. It is a tranquil place with an old watermill nearby. It is also said that Chosogabe and his army rested here for a spell when they were on the way to conquer whole of Shikoku. The best time to view the autumn leaves is around mid-November.