The mountain group of the Beigua is one of the richest areas in biodiversity in the Liguria region. Known for the migration of the birds of prey, recently it saw the return to nesting of the golden eagle together with the eagle owl, the rock thrush, and the whitethroat.
Along its most difficult routes which remain concealed to the sight of man, there is the wolf, and from the spurs facing the sea it is possible to see whales. In a few kilometers the typical blooming of the Mediterranean maquis gives way to the high altitude peat bogs. Among the multicoloured endemic floral species (Viola Bertolonii, Cerastium utriense, Asplenium cuneifolium, Daphne cneorum andCheilantes marantae), peculiar example of the minor fauna (like the Montpellier snake, the Alpine newt, the crested newt, the common frog, etc.) and the typical ungulates of the Ligurian Apennine live (wild boars, roe deers, and fallow deers).
The area, included among the "Special Protection Zones" (European Directive 79/409 "Birds"), is considered one of the most important in Liguria from the zoological point of view.
Thanks to its geographical position it is really a "bottle neck area", where the routes of many migratory birds converge such as the stork and many diurnal birds of prey, which during spring pass through these crests (harrier eagle/mid March, duck-hawk/early April, pern/mid May).
According to ornithologists more than 5.000 birds of prey pass through the lands behind Arenzano in the spring.
THE WHALE SANCTUARY
The sea bed of the deep Ligurian Sea is marked by sections of emerged volcanic masses: the rocky environments are the habitat of white bream, saddled bream, wrasses and scorpion fish, while in the sandy areas you will find sole, mullet and sea perch and an abundance of sea shells.
The sea currents cause the sea waters to become rough, thereby allowing the deep-sea nutritive substances to float in the water. This phenomenon is also eased by the blowing of winter winds which cause the nutritive substances to spread into the water support.
Hence, every summer common rorquals, dolphins and sperm whales, meet in the Ligurian-Provençal Dock. To preserve the numerous marine species in the marine triangle between Punta Mesco, Cape d'Antibes and Cape Corso, Italy, France and Monaco have established the International International Whale Sanctuary.