After the outbreak of war in 1914 , '' Acadia '' was among the government vessels used to patrol the Bay of Fundy during the winter months , sailing between Yarmouth , Nova Scotia and Grand Manan . CGS '' Acadia '' was commissioned into the Royal Canadian Navy on January 16 , 1917 as a patrol vessel , replacing the CGS prefix with HMCS , thus becoming . The vessel was armed with one gun placed forward . From 1917 until March 1919 , she conducted anti-submarine patrols from the Bay of Fundy along Nova Scotia 's Atlantic coast and through the Gulf of Saint Lawrence . On December 6 , 1917 , less than twelve months into her wartime service , HMCS '' Acadia '' survived the disastrous Halifax Explosion . '' Acadia '' was serving as guard ship at the entrance to Bedford Basin but suffered only minor damage . Near the end of the war she served as a platform for experiments with anti-submarine balloons
Halifax Explosion
Halifax Explosion
CSS Acadia