The Orari River flows eastward from its headwaters in the Ben McLeod ranges to the sea north of Temuka. It is a rain-fed river characterized by a shingle bed and banks that are frequently lined with willow. Unlike larger neighboring rivers, the Orari is less affected by snowmelt discoloration, making it a viable option when other systems are unfishable. Its flow can reduce dramatically during the summer months, presenting challenges for anglers.