William Bay National Park, near Denmark, is home to some of WA’s most stunning beaches. The carpark and entrance to Greens Pool and Elephant Rocks, Madfish Bay, Waterfall Beach and the rest of William Bay National Park has been recently redeveloped to accommodate visitors more comfortably. There are toilets and changing facilities at the carpark above Greens Pool. Remember; there are LOTS of stairs down from the carpark to the Greens Pool Beach. Take it slow, rest if required.