It is surrounded by Sunnidale Road, Cundles Rd W, Coulter St, and Highway 400.
[1] The park is home to the Wyman Jacques Arboretum,[2][3] the Dorian Parker Centre, and it also hosts a community garden.
A ravine and a small creek run through the east side of the park from Cundles Road W and Highway 400.
Located within Sunnidale Park is the Dunsmore Ancestral Huron-Wendat Settlement.
In the late 1960s the land was acquired by the city of Barrie and turned into a municipal park.