Callan Park is a large public park located in Rozelle, a suburb of Sydney, Australia. It covers approximately 61 hectares and features a mix of open green spaces, gardens, and walking paths. The park is known for its historic buildings, including the former Callan Park Hospital for the Insane, which adds to its cultural significance. Visitors to Callan Park can enjoy various recreational activities, such as picnicking, jogging, and cycling. The park also offers beautiful views of Iron Cove and is home to several native plant species and wildlife, making it a popular spot for nature lovers and families alike.