High Quality Content by WIKIPEDIA articles! Cadet Summer Training Centre HMCS Acadia is a Royal Canadian Sea Cadets summer training centre in Cornwallis Park, Nova Scotia. In November 1945, HMCS Acadia was decommissioned from Royal Canadian Navy service and the vessel returned to civilian operations with the Canadian Hydrographic Service. The name and unit colours of HMCS Acadia were revived in 1956 by the RCN when a new Royal Canadian Sea Cadets summer training centre was established at the naval base HMCS Protector on Cape Breton Island. It was called HMCS Acadia.