Situated within the Municipality of Cesarò and covering a surface area of about 18 hectares, Biviere Lake is the most important high-mountain wetland in Sicily for its great naturalistic value and its particular vegetable and animal population. The very rich flora is influenced by the periodical variations of the water level, leading to a horizontal zonation of the vegetation, which can be divided into six strips, according to the various dominating species. Moreover, the presence of water in a mountain area covered with beech woodlands represents a privileged reference point for the life of several aquatic bird species, as well as for the stopover of migratory birds. A natural phenomenon which is worth a mention: during the summer, the water of the lake turns red because of the blooming of a micro algae called Euglena sanguinea.
The trail goes round a wetland area near Biviere Lake and continues uphill, entering Scavioli beech woodland. The woodland becomes thicker in some points, whereas in other points it opens up in large clearings dominated by Holly, isolated Yew shrubs, big specimens of Crab trees and Wild Pears, Blackberry bushes, Hawthorns, and Dog Roses.
Afterwards, it enters the beautiful Mangalaviti Woodland, made of imposing high-trunk beech woodlands of great naturalistic and landscape value, with large panoramic points facing Vallata del Rosmarino, Rocche del Crasto, and the Tyrrhenian Sea, scattered with the Aeolian Islands.