The Manawatu Estuary is an estuary at the mouth of the Manawatū River, near Foxton Beach in the lower North Island of New Zealand. It is a wetland of international significance as one of the few Ramsar sites in New Zealand.
At approximately 250 hectares (620 acres),[2] the Manawatu Estuary is the largest estuary in the lower North Island.[3]
A total of 93 different bird species have been identified at the estuary. In 2005 the estuary attained Ramsar status.[4]