Exposure to sea winds has encouraged the growth of resistant plants. In spring, the genets and ajoncs are in bloom and the whole valley is decked out in orange-yellow. On the slopes protected from the onslaught of the weather, green dominates. Oaks, willows… The forest is lush.
This valley features granitic outcrops upstream from the stream, then schistose towards the sea. There is a vegetation of fougères, aulnes, iris acores in spring, himalayan balsamroot in summer. It tends to be impoverished by overharvesting.
The very varied fauna of badgers, foxes and small rodents lives in the thickets, but it’s above all the birds that can be seen and heard; they nest here in large numbers.