Lowland coastal fynbos (strandveld) is the main type of vegetation. Species such as bietou, blombos, sour fig and waxberry characterise this vegetation.
Parts of the dunefields were stabilised from the early 1900s until the 1980s, using alien rooikrans and Port Jackson.
These species are invasive and, together with uncontrolled coastal development, pose a threat to the indigenous strandveld.
There are dense thickets of old milkwoods which occur along the banks of the Klein River lagoon.