It covers most of the Peloponnese peninsula, except for the northwestern subregions of Achaea and Elis which belong to Western Greece and a small portion of the Argolid peninsula that is part of Attica.
It encompasses most of the Peloponnese peninsula, excluding the northwestern subregions of Achaea and Elis, which are part of Western Greece, and a small portion of the Argolid peninsula that is included in Attica.