The main feature of this park is the lake, which fills from Lake Hindmarsh when the Wimmera River is in flood. At high water mark, the lake covers 5850 ha. The lake generally fills and empties on a 20 year cycle, the longest dry period on record being 27 years. The park also includes Ross Lake (470 ha) and a 2.5km stretch of Outlet Creek. Outlet Creek and the sand dunes north of the lake can be explored on short day walks or longer overnight expeditions. The park is also popular for water skiing, fishing, yabbying and boating when water levels are high enough. Before you go Conditions can change in parks for many reasons. For the latest information on changes to local conditions, please visit the relevant park page on the Parks Victoria website. Be bushfire ready in the great outdoors. Refer to the Bushfire Safety section on the Parks Victoria website for tips on how to stay safe.