On Oakland County Parks Free Entry Days, visitors can enjoy free daily park entry with access to trails, dog parks, playgrounds, fishing spots and beaches at Groveland Oaks and Independence Oaks (seasonal). Please note that Groveland Oaks will be open April 26-Sept. 30. Free Entry Days are valid at Addison Oaks, Groveland Oaks, Highland Oaks, Independence Oaks, Lyon Oaks, Lyon Oaks Dog Park, Orion Oaks, Orion Oaks Dog Park, Red Oaks Dog Park and Rose Oaks. These parks are always free: Catalpa Oaks, Pontiac Oaks, Red Oaks Nature Center, Springfield Oaks and Waterford Oaks.