The works of the Edo era sculptor in wood Ihachi are to be found in many temples and shrines in Chiba prefecture and elsewhere. Following the travels of Ihachi the first, known for his exceptional renderings of waves, we have been able to trace the shipping routes of the time. In this article, I would like to reconsider the famous artist Ihachi, son of the Sotobo coast and Kamogawa, now popular among surfers, from the perspective of the ocean.