William Bay Campsite is a free camping area within William Bay National Park, located along the south coast near Denmark. The site provides basic amenities including tent sites and toilet facilities. The park is known for its stunning turquoise waters, sheltered bays, granite rock formations and popular swimming spots such as Greens Pool and Elephant Rocks. The Bibbulmun Track passes through the park, offering walking opportunities along the coastline. During peak periods, particularly school holidays, the park can become busy with limited parking. Dogs are welcome at this campsite, making it suitable for travellers with pets seeking coastal camping.