Sidney is a town located at the northern end of the Saanich Peninsula, on Vancouver Island in the province of British Columbia. It is one of the thirteen Greater Victoria municipalities. It has a population of approximately 11,583. Sidney is located just east of Victoria International Airport, and about 6 km (4 mi) south of BC Ferries' Swartz Bay Terminal. The town is also the only Canadian port-of-call in the Washington State Ferries system, with ferries running from Sidney to the San Juan Islands and Anacortes. Sidney is located along Highway 17, which bisects the town from north to south. It is generally considered part of the Victoria metropolitan area.

Highway 17 is a provincial highway in British Columbia, Canada. It comprises two separate sections connected by a ferry link. The Vancouver Island section is known as the Patricia Bay Highway and connects Victoria to the Swartz Bay ferry terminal in North Saanich. The Lower Mainland section is known as the South Fraser Perimeter Road and connects the Tsawwassen ferry terminal to Delta and Surrey, terminating at an interchange with Highway 1 in the Fraser Valley.