The Tomahawk Lagoon is located on the outskirts of Dunedin, on the south of the Otago Peninsula. The lagoon is noted for its bird life (Wikipedia). Tomahawk Lagoon (Lower) is the western lagoon of two shallow brackish water lagoons, joined by a narrow channel, that make up Tomahawk Lagoon. Tomahawk (Lower) drains to the Pacific ocean via a small stream, but is cut off at low tide, and the outlet is often blocked (www.orc.govt.nz). Despite its name, it is never inundated with the sea, but is more of a shallow coastal lake, predominantly under 1.5 meters in depth.