This route combines coastal path stretches with inland areas so the contrast of flora and fauna is important.
On the coastal stretch the flora is mainly bushy thickets or species adapted to the coastal environment characterized by the gusts of wind and the rocky slopes. Amongst them there are endemic plants from Galicia or from the Iberian northwest such as the Armeria pubigera (Sea Thrift or Sea Pink) or very representative species such as Gorse (Ulex europaeus) which covers many stretches of the coast with an intense yellow colour. Walking along these rugged stretches we reach the cave of Do Ladrón in the proximities of the castro de Punta Roza.
As we come inland from the seashore and the influence of the coast and the wind, we find wooded areas modified in some degrees by man. Mainly Pinewoods and Eucalyptus plantations with native species interspersed, such as Oaks (Quercus robur and Quercus pyrenaica) and Bay Laurel (Laurus nobilis).
In the stretch furthest inland, the proximity of a small stream gives rise to exuberant green formations of life, riverside flora accompanied by the widespread Common Bracken (Pteridium aquilinum). This is characterized by its easy growth through asexual reproduction and underground rhizomes, so that large areas are usually covered by the same species. Amongst the species of note typical to this environment are the Black Alder (Alnus glutinosa) and Poplars (Populus sp), etc.
The fauna associated with the coastal stretch is mainly composed of marine birds, such as the Yellow-legged Seagull (Larus michahellis) or the Great Cormorant (Phalacrocorax carbo). Along the cliffs one can easily observe the spectacular flight of the Peregrine Falcon (Falco peregrinus).
Further inland, between bushes and pinewoods we find several species such as the Dartford Warbler (Sylvia undata) or the European Nightjar (Caprimulgus europaeus), a nocturnal species that feeds on flying insects.
Amongst the reptiles there are some endemic species such as the Bocage’s Wall Lizard (Podarcis bocagei). There are also mammals which are difficult to see such as the European Polecat (Mustela putorius).