Orowaiti Lagoon is a tidal lagoon, an estuary, located just north of Westport in the Buller District. It is a coastal wetland with an elongate planform, characterized by still, peaceful waters and expansive views, creating a haven for nature observation. The lagoon is an important estuarine wetland ecosystem. Paddlers should be aware that this is a tidal feature, meaning water levels and currents are governed by the sea. The lagoon's connection to the Tasman Sea is at its western head, with coordinates noted at 41°44.42′S and 171°40.16′E. This marine entrance is a critical consideration for planning, as crossing the active river mouth or navigating any surf zone requires careful tide and weather assessment. The surrounding area is known for its rugged, scenic coastline. The lagoon attracts significant birdlife, particularly bar-tailed godwits and other wading birds, making it a notable site for wildlife viewing from the water. The broader area is subject to coastal inundation and flood risks, as the lagoon and adjacent Buller River have experienced major flooding. Paddlers must check weather and tidal forecasts thoroughly, as conditions can change rapidly. The overall paddling experience is defined by tranquility and birdwatching in a dynamic coastal environment.