 "Oberrender" departed Ulithi on the next day, acting as part of the screen for three fleet oilers on their voyage to the Tarraguna Anchorage near San Pedro Bay, which was reached on 7 March.Anchored in the bay for several days, she became part of Task Group 51.1 in preparation for the invasion of Okinawa, and on 10 March participated in anti-aircraft firing exercises.With the task group, the ship conducted rehearsals for the landings in Leyte Gulf between 14 and 16 March, then returned to the anchorage.