All the islands have areas reserved as breeding grounds for sea birds, which the visitor should respect. The Park’s most representative natural systems are the coastal area and the Atlantic Continental Platform. Vegetable life is conditioned by the winds laden with saltpetre. The most representative flora is found on cliffs and dunes. Clumps of furze abound, but among the Park rarities are the corema album, Ons broom (Cytisus insularis) and the flowers called sand toadflax (Linaria arenaria), a small annual plant typical of stabilised dunes. Many of the land animals also depend on the sea.
Numerous colonies of birds, principally the yellow-legged seagull and the shag. In the sea, there is the possibility of sighting cetaceans like the finback whale which frequents these waters in the summer. The beds of kelp are also of importance in these waters.