津軽海峡
"Volador" transited Tsugaru Strait and, on 19 March commenced a submerged patrol on the lane between Vladivostok and La Perouse Strait which lasted until 8 April. She then commenced a transit of Tsugaru Strait and set a course back to Yokosuka where she moored on 11 April 1955. After the completion of this patrol, "Volador" was commended for excellent photography, correct identification of contacts, and accurate reporting of identifying characteristics regarding the 33 ships contacted.