The Lourens River is a significant estuarine system flowing into False Bay on the Atlantic Ocean coast of the Western Cape. It originates in the Hottentots Holland Mountains and passes through Somerset West and the Strand before meeting the sea. The estuary itself supports high biodiversity, while the river's freshwater sections above Somerset West hold populations of introduced species. The system is influenced by both river flows and tidal action from False Bay, creating varied fishing environments from mountain streams to a tidal estuary. The mouth area is part of the coastal angling scene of False Bay, known for its mix of marine and estuarine conditions.