Along the Indramayu coast on the northern coast of Java, Indonesia, approximately 1 km of shoreline retreat has occurred over the past 85 years. This erosion is considered to be caused by the wave-induced outflow of silt and clay, which are abundant in the cohesive soil forming the coast. Currently, measures are being taken such as installing bubble mound breakwaters near the shoreline. However, some breakwaters have sunk and scattered, creating openings where the shoreline has retreated and deformed into curved shape. This suggests that even on such a coast, if the shoreline at both ends is fixed by breakwaters, the sand within the cohesive sediment remains near the shoreline, potentially forming a stable curved beach, while some shoreline retreat occurs at the opening. The overall concept suggests that the headland control can be used for prevention of clayey coasts. This approach offers environmental benefits such as maintaining natural beaches, and economic advantages, such as reducing the need for extensive facilities.