The Kasouga River is a blind river estuary located between Kenton-on-Sea and Port Alfred in the Eastern Cape Province of South Africa. This tidal system features mudflats, reeds, and grasses, with the lagoon occasionally breaching to allow the river to flow directly into the Indian Ocean. The area is part of the Ndlambe Local Municipality within the Sarah Baartman District and is situated approximately 900 kilometres south of Pretoria. The name "Kasouga" translates to "place of the leopard" from the Khoe-Khoe language, and the surrounding area is known as a historic holiday village.