Kosi Bay is the highlight of the UNESCO listed Isimangaliso Wetland Park and a superb place to visit.
The wetlands consist of 4 interconnected shallow lakes in which Hippos, Sharks and Crocodiles can be found.

The most surprising aspect of the park is that there is a very small area in the river mouth where one can snorkel from the shore and expect to see fish normally associated with more tropical waters.

The Kosi Bay and Maputo Bay area have long since been inhabited by the friendly Tsonga people.
Their interesting fish traps cover the wetland area and are very photogenic.

In summer leatherback and loggerhead turtles come ashore to lay their eggs and night visits can be arranged (although the excursion can be very tiring).

There are many community lead tourist initiatives in the area which deserve strong support.
A 4x4 trail leads north across the Mozambique border at Ponto d'Ouro.