Abstract
We investigated the beach changes in shoreline area of the Hasaki coast with the boundary conditions as a pocket beach bounded by both reclaimed land of Kashima Port and Hasaki fishing port breakwater. In this area, southward longshore sand transport was predominant in the wave-shelter zone of the fishing port breakwater, whereas northward longshore sand transport prevailed far from the fishing port, which was supposed to be southward in the previous study. Thus, the reversal of the direction of longshore sand transport occurred on the coast.