Canada's Wonderland, formerly known as Paramount Canada's Wonderland, is a 134-hectare (330-acre) amusement park located in Vaughan, Ontario, a suburb approximately 25 kilometres (16 mi) north of Downtown Toronto. Opened in 1981 by the Taft Broadcasting Company and the Great-West Life Assurance Company, it was the first major theme park in Canada and remains the country's largest. Cedar Fair purchased the park from Paramount Parks in 2006, and in 2019, it was the most-visited, seasonal amusement park in North America with an estimated 3.9 million guests.
Canada's Wonderland normally operates from May to Labour Day, and then on weekends until late fall. Special events are held throughout the season, including Halloween Haunt and various festivals such as Celebration Canada, a month-long Canada Day festival. Beginning in 2019, the park also hosts WinterFest, a holiday-themed event that extends the park's operating season to late December.
With seventeen roller coasters, Canada's Wonderland is ranked second in the world behind Six Flags Magic Mountain, which has twenty. Eight hectares (20 acres) of the land houses a water park named Splash Works.