Wollondilly is a local government area located in New South Wales, Australia. It is situated southwest of Sydney and encompasses several towns, including Picton, Thirlmere, and Wollondilly Shire. The region is known for its natural beauty, featuring rolling hills, forests, and the Wollondilly River. The area is popular for outdoor activities such as hiking, camping, and fishing, attracting both locals and visitors. Wollondilly also has a rich history, with heritage sites and landmarks that reflect its past, including the historic Picton Railway Station and various colonial buildings.