A complex of small islands between Naxos and Amorgos. Besides Koufonisia, in which there are several plains and sandy shores, the other islands are mountainous and covered almost the entire surface from sparse scrub and brushwood. They are an important area for breeding seabirds and raptors and species associated with coastal cliffs.
About 160 pairs of Eleonora’s falcon nest in the region.
The area is part of the Natura 2000 network (GR4220021, GR4220013), while part of it is a Wildlife Refuge.