
Country: New Zealand The Whanganui River, New Zealand’s longest navigable waterway, reaches the sea at this North Island city. Whanganui, also spelt Wanganui, forms part of the Manawatū-Whanganui region on the island’s west coast and is the country’s 19th most-populous urban area. With 42,800 residents as of June 2025, it is also the region’s second-largest urban centre.
