At the beginning of the Barranco de Guayadeque, in the highest range,
the Caldera de Los Marteles, whose base is used for
agriculture, is present. The hard material that makes up the slope,
essentially composed of hard materials of volcanic agglomeration, sits
on lava formations of circus Roque Nublo of the recent cycle, which is
reflected in the great escarpments, massifs and the impressive rocks. In
addition to these peculiar geoforms, hillsides and gullies, in a
semicircular way, the power of water is shown, which descends
progestatically from the steep walls of the caldera towards the
mediations of this great basin. Of volcanic origin, it owes its
spectacular aspect to the explosiveness of materials that conformed it:
water and magma. The slopes full of terraces make up a landscape of high
ethnographic value. Among the most unique birds of this area is the
blue pizón (fringilla polatzeki). It is important to note the wide
floristic variety of Guayadeque, species such as the genus Micronesia,
to which are listed those in the book of the rest of species in danger
of extinction; This is why one of the most important enclaves of the
island, where the thermophilic forest survives, is the Barranco de los
Cernícalos. Great presence of natural bioindicators in this soil of
vegetation, space cataloged as a special natural reserve.