Verlorenvlei is a long estuary stretching between the villages of Elands Bay and Redelinghuys, some 25 kilometres south of Lambert’s Bay. Verlorenvlei is one of the most important estuarine systems in the Western Cape and one of the largest natural wetlands along the west coast of South Africa. It is also one of the few coastal fresh water lakes in the country. The system comprises a coastal lake and reedswamp connected to the sea by a small estuary.
At least 26% of the Western Cape's Great White Pelican Pelecanus onocrotalus population congregates at Verlorenvly at times.
Situated amid dramatic topography, the lake is approximately 13.5 km long and 1.4 km wide and occurs in the zone of transition between the karroid and fynbos vegetation types. This results in the region displaying a high species diversity typical of an ecotone area.