Kosi Bay Nature Reserve is the crown jewel of iSimangaliso Wetland Park. Not only is this pristine lake system a great place to fish, it is a great place to snorkel, hike and watch wildlife. Shore fish, fly fish and ski boat fish. Snorkel the brackish waters of Kosi Bay mouth. Hike the 4-day Kosi Bay Trail. Observe sea turtles on a guided night walk. Watch humpback whales from shore. Spot hippos and crocs and more than 250 species of birds. And do it all in solitude. Kosi Bay Nature Reserve is a true ecotourism hideaway.