The Trent-Severn Waterway is a historic system of interconnected lakes and rivers in Ontario, Canada. Stretching over 386 kilometers, it connects the Trent River to Lake Ontario and Georgian Bay. The waterway features a series of locks, dams, and canals that facilitate navigation and recreational boating. Constructed between the 1830s and 1920s, the waterway played a crucial role in transportation and trade. Today, it is a popular destination for outdoor activities such as canoeing, fishing, and hiking. The waterway is managed by Parks Canada and is recognized as a national historic site.