The riding combines two notable city neighbourhoods: the Beaches and part of the former borough of East York. This political boundary is an area used for both provincial and federal representation; municipally it is divided into two halves, with a councillor for the Beaches (Ward 32) in the south, and one for East York (Ward 31) to the north.
The boundary of the new riding of Beaches-Woodbine, beginning at the southwest corner starts where the southern extension of Leslie Street intersects with Lake Ontario, proceeds north along Leslie Street, then east along Queen Street East, north along Greenwood Avenue, east along Gerrard Street East, and north along Coxwell Avenue until it turns into Coxwell Blvd. at O'Connor Drive. It continues a short distance along this street where the boundary extends until it meets Taylor-Massey Creek. It follows the creek west (downstream) until it meets the Don River East Branch. The boundary follows the river northeast (upstream) until it meets the point where a westerly extension of Sunrise Avenue intersects with the river course. The boundary continues east along Sunrise Avenue until it meets Victoria Park Avenue. The boundary turns south and follows the street south until it ends at Lake Ontario. The boundary follows the lake coast back west until it meets the beginning point.
In 2003, the western boundary was altered so that the portion west of Coxwell Avenue was transferred to the neighbouring riding of Toronto-Danforth.