A linked chain of coastal lakes and estuary in Maputaland, on the edge of the iSimangaliso Wetland Park.
Kosi Bay
Kosi Bay is a series of four interlinked lakes in the Maputaland region of KwaZulu-Natal, South Africa, near the border with Mozambique. The system runs from a freshwater estuary mouth on the Indian Ocean inland through a sequence of connected lakes, surrounded by coastal forest, dune woodlands, and mangrove-lined channels. The area forms part of the iSimangaliso Wetland Park, a UNESCO World Heritage Site, and is also recognised as a Ramsar Wetland of international importance.
The bay is renowned for the exceptional clarity of its estuarine waters, earning the river mouth the informal nickname "the aquarium" because of the abundance and visibility of fish species. It supports a rich mix of marine, estuarine, and terrestrial habitats, producing high wildlife diversity that includes turtles, fish-eating birds, hippos, crocodiles, sharks, and migrating cetaceans. Culturally, Kosi Bay is deeply tied to the ancient Thonga (AmaThonga) Tembe kingdom, and the lake system has been used for traditional fishing for roughly a millennium.