The upper valley of the Olifants is predominantly a citrus-farming region. The Cederberg mountains, much of which are a protected wilderness area, rise from the eastern bank of the river, while along the coast to the west are fishing and holiday villages. The Olifants river continues northwards until, on the edge of the Knersvlakte, it turns west towards the Atlantic. In the lower valley there is a narrow strip of lush agricultural land irrigated by the river's water. The Knersvlakte, which is part of the arid Namaqualand region, forms the northernmost part of the district.