CANADIAN search teams have found the body of a missing Australian hiker in a river near a treacherous waterfall.

Sophie Dowsley, 34, and her Canadian partner, Gregory James Tiffin, disappeared on July 10 while hiking near Statlu Falls, a scenic but rugged wilderness area in British Columbia.

A search was launched after the couple's vehicle was found unoccupied near Statlu Lake.

Mr Tiffin, 44, was found at the base of the falls on July 19 and Royal Canadian Mounted Police spokesman Mike Rail told AAP that Agassiz RCMP and Kent Harrison Search and Rescue teams never gave up, despite dangerous rapid water conditions.

They found Ms Dowsley's body on September 23.

Police say foul play is not suspected in the deaths of either hiker.