View of the Los Frailes islands off the Redondo Peninsula, Luzon, Philippines, in 1956. Silanguin Island is visible on the right. The tiny Los Frailes islands in the foreground were used by the U.S. Navy as a bombing and gunnery target not far from Subic Bay.
U.S. Navy
U.S. Navy photo <a rel="nofollow" class="external autonumber" href="https://www.navysite.de/cruisebooks/atg3-56/051.htm">[1]</a> from the <a rel="nofollow" class="external text" href="https://www.navysite.de/cruisebooks/atg3-56/index_006.htm">USS <i>Shangri-La</i> (CVA-38) Air Task Group 3 1956 cruise book</a> available at <a rel="nofollow" class="external text" href="http://navysite.de/cruisebooks/index.html">Navysite.de</a>