Canada's Wonderland is a 330-acre (130 ha) amusement park located in Vaughan, Ontario, Canada, a suburb directly north of Toronto, Ontario, Canada. The park is open seasonally from May to October and contains more than 200 attractions (including games) in eight differently themed areas. It opened in 1981 and was Canada's first major theme park and is still today the largest and most popular theme park in Canada. Under the ownership of Paramount Parks from 1994 to 2006, it was known as Paramount Canada's Wonderland. When sold to Cedar Fair in 2007, the park reverted to its original name.
The park has been the most attended seasonal theme park in North America for numerous years in the 2000s. Almost every year in the decade, the park's attendance has reached the three million mark, slightly higher than that of other major destination parks such as Kings Island, Knott's Berry Farm and Cedar Point, the three being sister parks to Wonderland. It also holds the record for most roller coasters in a park outside of the United States, with 16, including Leviathan, which is currently under construction.