The Kariega River is located in South Africa's Eastern Cape, flowing through a landscape of hills, plains, and river valleys before reaching the coast near Kenton-on-Sea. It is an estuary system that connects with the Bushman's River, and the two waterways together form the paddling corridor in this part of the Eastern Cape.

Canoeing on the Kariega River is offered within Kariega Game Reserve, a private Big Five reserve where paddlers share the water with a range of wildlife. Hippos are present in the reserve area, which is a significant safety consideration for anyone paddling here. African Fish Eagles are regularly spotted along the river, and the surrounding reserve supports a broad array of wildlife including elephant, lion, and various antelope species visible from the water.

A public boat launch site — the Kariega river slipway — exists and is managed by Ndlambe Local Municipality, providing access outside the private reserve context. River cruises operated within the reserve travel from the reserve's jetty downstream to the beaches at Kenton-on-Sea, indicating that the lower river is navigable and connects to the coast.

Paddling within the game reserve is typically organized as a guided activity, taking place in mid-morning alongside bush walks and fishing. Independent paddlers should be aware that much of the river corridor passes through or adjacent to private reserve land. The estuary character of the lower Kariega means tidal conditions will influence paddling, particularly on trips toward Kenton-on-Sea.