[4] Wildlife in the park includes large antelope such as eland, red hartebeest, bontebok, kudu, gemsbok, steenbok, mountain zebra, duiker and ostriches in the Postberg section.

[5] Many Palearctic migrants winter in the lagoon during the austral summer, particularly in September as species arrive from the northern hemisphere, and in March when they gather in large numbers to feed up prior to undertaking the return migration.

Little egret and South African shelduck are residents and can often be seen with the waders, while Greater flamingoes and Great white pelican occur in deeper water.

An isolated hide west of the Geelbek educational centre overlooks a salt pan where it is possible to observe the rare Chestnut-banded plover.

The coastal islands at the mouth of the lagoon are important breeding colonies for Kelp and Hartlaub's gull, Cape gannet and African penguin, as well as cormorants and terns.

The months of August and September bring about the proliferation of annual Spring flowers in the West Coast National Park.