The most important bird watching location on the tour is the Biggar Lagoon Wetlands. It is a converted lagoon made to be a safe habitat for birds of all kinds. The main birds that stay there are shore birds, as it is a lagoon and also just off of Lake Ontario in Grimsby. Their common visitors can range from the Killdeer, Swan, Hudsonian Godwit, and far more. As for animals, there are Voles, Weasels, Turtles, and simply too many to list! The location itself provides information on some of the animals that frequent the area too via informational signboards that can be found spread thorughout the viewing area. This area being open all year round opens up possibilities to catch nocturnal birds or winter birds.

Passive activities in this area are allowed, including birding and walking.

Biggar Lagoon Wetlands started as six sewage treatment lagoons up until the year 2000. Once sewers were reworked, the lagoons were slated to be drained. The Hamilton Naturalists' Club petitioned to keep it as a reconstructed wetlands. They succeeded and the Biggar (named after a family and their farm that once stood there) Lagoon Wetlands was born.

Biggar Lagoon Wetlands is home to many threatened animals and plants, and is a crucial resting spot for migratory birds that are not natively found in the region.

Biggar Lagoon Wetlands is owned currently by both the Grimsby region and by the Department of National Defence.