The Bruce Peninsula is a peninsula in Ontario, Canada, that lies between Georgian Bay and the main basin of Lake Huron. The peninsula extends roughly northwestwards from the rest of Southern Ontario, pointing towards Manitoulin Island, with which it forms the widest strait joining Georgian Bay to the rest of Lake Huron. The Bruce Peninsula contains part of the geological formation known as the Niagara Escarpment.
From an administrative standpoint, the Bruce Peninsula is part of Bruce County, named after James Bruce, 8th Earl of Elgin (Lord Elgin), Governor General of the Province of Canada. A popular tourist destination for camping, hiking and fishing, the area has two national parks (Bruce Peninsula National Park and Fathom Five National Marine Park), more than half a dozen nature reserves, and the Bruce Peninsula Bird Observatory. The Bruce Trail runs through the region to its northern terminus in the town of Tobermory.
The Bruce Peninsula is a key area for both plant and animal wildlife. Part of the Niagara Escarpment World Biosphere Reserve, the peninsula has the largest remaining area of forest and natural habitat in Southern Ontario and is home to some of the oldest trees in eastern North America. An important flyway for migrating birds, the peninsula is habitat to a variety of animals, including black bear, massasauga rattlesnake, and barred owl.