 As the fleet continued to press toward Japan in a series of amphibious landings, "Hydrographer" sailed from Guam 1 October bound for the Palaus.En route she rode out a large typhoon and arriving safely Kossel Passage, 14 October 1944.In the months that followed, the ship charted and surveyed many islands in the southern Palaus, helped to establish anchorages and seaplane landing areas, and buoyed channels.