The region that you enter to the south and southeast of Corinth was known as the Argolid (Argolídha in modern Greek), after the city of Árgos, which held sway here in Classical times. The greatest concentration of ancient sites in Greece is found in this compact peninsula, its western boundary delineated by the main road south from Kórinthos. Within less than an hour’s drive of each other are Agamemnon’s fortress at Mycenae, the great theatre of Epidaurus, and lesser sites at Tiryns and Árgos.
In peak season you may want to see the sites early or late in the day to realize their magic. When ruin-hopping palls, there are the resort-town pleasures of elegant Náfplio, and a handful of beach resorts.