Ninety percent of the year the river mouth is closed and there is a wide sandy beach however each year after heavy winter rains the river breaks through the sand banks and flushes out into the ocean. Some days the river is crossable, others you can count on getting quite wet or you might even need to take a detour.  Check maps for detour information. HANDY TIP : A facebook group called Wooditjup Bilya ~ Margaret River (river mouth) shares pictures of the river and you can see if you're up for a crossing (or not!).