Sault Ste. Marie Water Aerodrome (TC LID: CPX8) is located adjacent on the St. Marys River in Sault Ste. Marie, Ontario, Canada. It shares its airspace and waterway with neighbouring Sault Ste Marie International Seaplane Base (FAA LID: MI8) in the United States.

Sault Ste Marie Water Aerodrome services the Canadian Bushplane Heritage Centre, a museum which features many interactive bush plane, forestry, and aerial firefighting exhibits. Several aircraft are also under restoration at the centre, notably a De Havilland Fox Moth with the registration C-FBNI.

• List of airports in the Sault Ste. Marie, Ontario area
• Media related to Sault Ste. Marie Water Aerodrome at Wikimedia Commons