The Harbour Master's Office is located next to the The Great Ocean Dock. It is marked by a sign and an illuminated HMO street lamp sign. It appears in the opening sequence as a model and as an office interior set constructed at the CBC broadcasting center in Halifax which roughly mirrors the blinds and windows of the model.
The Harbour Master's Office is inspired by the Harbour Commission Building at Pier 20 in Halifax, Nova Scotia which contained the office of the Halifax Harbour Master until it was abolished. It is now home to the Halifax Port Authority (HPA). The model from the series is preserved at the Maritime Museum of the Atlantic.