 She was also twice commissioned into the Royal Canadian Navy (RCN) as HMCS "Acadia", the only ship still afloat to have served the RCN in both World Wars.Today she is a museum ship, designated as a National Historic Site of Canada, moored in Halifax Harbour at the Maritime Museum of the Atlantic.Retaining her original engines, boilers and little-changed accommodations, she is one of the best preserved Edwardian ocean steamships in the world and a renowned example of Canada's earliest scientific prowess in the fields of hydrography and oceanography.