Coast, Ōshima, Ōshima Shichō. We calculate high and low water here from an ocean tide model — accurate to about 5 cm on open coasts, considerably less in tidal flats and river mouths. This spot is not in any official register — there are no water samples and no classification.
Swimming spots in Ōshima · Ōshima Shichō · Swimming spots in Japan · Pacific Ocean · On the map