A large part of the island, as well as of its surrounding marine environment, is of particular value for biodiversity, not only at local and national, but also at European level, and is part of the Natura 2000 network. Three Natura 2000 sites have been established for the protection of Andros’ special characteristics and the protected species and habitats it hosts. Among them are: The vast Posidonia sea-grass beds found along its entire coastline in depths from 5 to 40 meters, as well as the rich in biodiversity coral formations at greater depths, The Mediterranean monk seal (Monachus monachus), which is one of the most endangered marine mammal species in Europe, Protected bird species, the most important of which are the Eleonora’s falcon (Falco eleonorae), the Mediterranean shag (Phalacrocorax…