The Scheyville National Park ( /ˌskaɪˈvɪl/) is a protected national park that is located in the northwestern suburbs of Sydney in New South Wales, in eastern Australia. The 920-hectare (2,300-acre) national park is situated approximately 40 kilometres (25 mi) northwest of the Sydney central business district, northeast of Windsor, near the settlement of Scheyville. Longneck Lagoon lies in the northern section of the park. It was added to the New South Wales State Heritage Register on 9 April 2010. From Wikipedia