Surrey is a city in British Columbia, Canada. It is located south of the Fraser River on the Canada–United States border. It is a member municipality of the Metro Vancouver regional district and metropolitan area. Mainly a suburban city, Surrey is the province's second-largest by population after Vancouver and the third-largest by area after Abbotsford and Prince George. Seven neighbourhoods in Surrey are designated town centres: Cloverdale, Fleetwood, Guildford, Newton, South Surrey, and City Centre encompassed by Whalley.

The Fraser River is the longest river within British Columbia, Canada, rising at Fraser Pass near Blackrock Mountain in the Rocky Mountains and flowing for 1,375 kilometres (854 mi), into the Strait of Georgia just south of the City of Vancouver. The river's annual discharge at its mouth is 112 cubic kilometres (27 cu mi) or 3,550 cubic metres per second (125,000 cu ft/s), and each year it discharges about 20 million tons of sediment into the ocean.