Goose Lake Prairie State Park is a 2,500-acre nature preserve located in Grundy County, Illinois. The park is known for its diverse plant and animal life, including over 300 species of plants and numerous bird and mammal species.

One of the main reasons to visit Goose Lake Prairie State Park is to experience the unique prairie landscape. Visitors can explore the park's scenic trails and observation decks to view the vast expanse of tallgrass prairie and its inhabitants. The park also offers opportunities for hiking, birdwatching, fishing, and picnicking.

Some specific points of interest at Goose Lake Prairie State Park include the bison herd, which was reintroduced to the park in 2015, and the historic Gebhard Woods State Park, which is adjacent to Goose Lake and offers additional recreational opportunities.

Interesting facts about the area include that Goose Lake Prairie is one of the largest and highest-quality prairies remaining in Illinois, and that the park was designated a National Natural Landmark in 1965.

The best time of year to visit Goose Lake Prairie State Park is in the late spring and early summer. This is when the prairie is in full bloom, and visitors can see a wide variety of wildflowers and grasses. However, the park is open year-round, and each season offers its own unique beauty and activities.