Pickering.

Pickering sits on the north shore of Lake Ontario in Durham Region, immediately east of Toronto and the Rouge River and west of Ajax. Frenchman's Bay — a barrier-beach coastal lagoon and the natural enclosed harbour on the Pickering–Ajax–Whitby lakeshore — anchors the city's waterfront, with east and west spits, the Pickering Harbour Company marina cluster, and the Frenchman's Bay Yacht Club operating from the bay's outlet to Lake Ontario.

The Toronto and Region Conservation Authority manages Petticoat Creek Conservation Park (lakeshore bluff trails and the Petticoat Creek Splash Pad, which replaced the former pool in 2022) and Greenwood Conservation Area on Duffins Creek along the eastern boundary with Ajax. Rouge National Urban Park — Canada's first national urban park — spills in from Toronto and Markham along the city's western edge, with the marquee Rouge trails (Mast Trail, Vista Trail, Bob Hunter Memorial Park) on the Toronto/Markham side.

The Great Lakes Waterfront Trail runs through the city along the Lake Ontario shoreline, and the volunteer-maintained Seaton Hiking Trail follows West Duffins Creek for roughly 12 km through north Pickering. The Pickering Nuclear Generating Station is the visible coastal landmark immediately west of Frenchman's Bay.

Pickering sits within the Williams Treaties area on the traditional territory of the Mississaugas (Anishinaabe).