Relieved two weeks later by , the guided missile destroyer proceeded to Qui Nhon, where she joined Operation "Sea Dragon" for a week of call-fire missions against communist supply craft and coastal infiltration routes. After completing this mission on 8 April, she steamed to Subic Bay, where the crew began preparing the warship for visits to Australia and New Zealand. Departing the Philippines on 17 April, "Berkeley" crossed the equator north of the Admiralty Islands and moored at Sydney, Australia, on the 29th. Over the next three weeks, the warship's crew took part in the annual "Coral Sea Celebration"—which honored the victory won by the Allied navies in May 1942—and visited Sydney, Adelaide, and Hobart in Australia as well as Auckland, New Zealand. Underway for home on 22 May, the guided missile destroyer stopped at Suva in the Fiji Islands and at Pearl Harbor before arriving at Long Beach on 6 June.