Waikanae River is located on the Kapiti Coast in the North Island of New Zealand. The river drains the western flanks of the Tararua Ranges around Reikorangi and the Akatarawa Valley, then passes to the south of the town of Waikanae before entering the Tasman Sea at Waikanae Beach. Tributaries include the Maungakotukutuku Stream, Ngatiawa River, and Reikorangi Stream. The estuary of the river is a significant reserve providing shelter and habitat for local and migratory seabirds. It also provides a major recreational location, both for residents and tourists.