Argolis in the context of "Archaeological Museum of Nafplion"

The Myrtoan Sea (also Mirtoan Sea and Myrtoum Mare; Greek: Μυρτώο Πέλαγος, romanized: Mirtóo Pélagos Greek pronunciation: [mirˈto.o ˈpelaɣos]) is a subdivision of the Mediterranean Sea that lies between the Cyclades and Peloponnese. It is described as the part of the Aegean Sea south of Euboea, Attica, and Argolis. Some of the water mass of the Black Sea reaches the Myrtoan Sea, via transport through the Aegean Sea (Saundry, Hogan & Baum 2011).

The Saronic Gulf, the gulf of Athens, lies between the Corinth Canal and the Myrtoan Sea.

Mycenae (/maɪˈsiːniː/ my-SEE-nee; Ancient Greek: Μυκῆναι or Μυκήνη, Mykē̂nai or Mykḗnē) is an archaeological site near Mykines in Argolis, north-eastern Peloponnese, Greece. It is located about 120 kilometres (75 miles) south-west of Athens; 11 kilometres (7 miles) north of Argos; and 48 kilometres (30 miles) south of Corinth. The site is 19 kilometres (12 miles) inland from the Saronic Gulf and built upon a hill rising 274 metres (899 feet) above sea level.

In the second millennium BC, Mycenae was one of the major centres of Greek civilization—a military stronghold which dominated much of southern Greece, Crete, the Cyclades and parts of southwest Anatolia. The period of Greek history from about 1600 BC to about 1100 BC is called Mycenaean in reference to Mycenae. At its peak in 1350 BC, the citadel and lower town had a population of 30,000 and an area of 32 hectares (79 acres).

Tiryns (/ˈtɪrɪnz/ or /ˈtaɪrɪnz/; Ancient Greek: Τίρυνς; Modern Greek: Τίρυνθα) is a Mycenaean archaeological site in Argolis in the Peloponnese, and the location from which the mythical hero Heracles was said to have performed his Twelve Labours. It lies 20 km (12 mi) south of Mycenae.

Tiryns was a hill fort with occupation ranging back seven thousand years, from before the beginning of the Bronze Age. It reached its height of importance between 1400 and 1200 BC, when it became one of the most important centers of the Mycenaean world, and in particular in Argolis. Its most notable features were its palace, its Cyclopean tunnels and especially its walls, which gave the city its Homeric epithet of "mighty walled Tiryns". Tiryns became associated with the myths surrounding Heracles, as the city was the residence of the hero during his labors, and some sources cite it as his birthplace.

Argos (/ˈɑːrɡɒs, -ɡəs/; Greek: Άργος [ˈarɣos]; Ancient and Katharevousa: Ἄργος [árɡos]) is a city and former municipality in Argolis, Peloponnese, Greece and is one of the oldest continuously inhabited cities in the world, and the oldest in Europe. It is the largest city in Argolis and a major center in the same prefecture, having nearly twice the population of the prefectural capital, Nafplio.

Since the 2011 local government reform it has been part of the municipality of Argos-Mykines, of which it is a municipal unit. The municipal unit has an area of 138.138 km. It is 11 kilometres (7 miles) from Nafplion, which was its historic harbour. A settlement of great antiquity, Argos has been continuously inhabited as at least a substantial village for the past 7,000 years.

The Saronic Gulf (Greek: Σαρωνικός κόλπος, Saronikós kólpos) or Gulf of Aegina in Greece is formed between the peninsulas of Attica and Argolis and forms part of the Aegean Sea. It defines the eastern side of the isthmus of Corinth, being the eastern terminus of the Corinth Canal, which cuts across the isthmus. The Saronic Islands in the gulf have played a pivotal role in the history of Greece, with the largest, Salamis being the location of a significant naval battle in the Greco-Persian wars. The Megara Gulf makes up the northern end of the Saronic Gulf.

The Athens urban area lies on the north coast of the Saronic Gulf.

The Argolic Gulf (Greek: Αργολικός κόλπος, romanized: Argolikós kólpos), also known as the Gulf of Argolis, is a gulf of the Aegean Sea off the east coast of the Peloponnese, Greece. It is about 50 km long and 30 km wide. Its main port is Nafplio, at its northwestern end. At the entrance to the gulf is the island Spetses. This gulf and its islands are sometimes combined with the Saronic Gulf and Saronic Islands, with the result called the Argo-Saronic Gulf and the Argo-Saronic Islands. It is surrounded by two regional units: Arcadia to the southwest and Argolis to the north and east. The river Inachos drains into the Argolic Gulf near Nea Kios. The main islands in the gulf are Psili, Plateia and Bourtzi, a small island with a Venetian fortress that protects the port of Nafplio. The surrounding mountains protect it from the strong summer Meltemi wind.

The main towns that lie around the gulf are, from southwest to east:

The Peloponnese Region (Greek: Περιφέρεια Πελοποννήσου, romanized: Periféria Peloponnísou, [periˈferia pelopoˈnisu]) is a region in southern Greece. It borders Western Greece to the north and Attica to the north-east. The region has an area of about 15,490 square kilometres (5,980 square miles). 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.

Amphitryon (/æmˈfɪtriən/; Ancient Greek: Ἀμφιτρύων, gen.: Ἀμφιτρύωνος; usually interpreted as "harassing either side", Latin: Amphitruo), in Greek mythology, was a son of Alcaeus, king of Tiryns in Argolis. His mother was named either Astydameia, the daughter of Pelops and Hippodamia, or Laonome, daughter of Guneus, or else Hipponome, daughter of Menoeceus. Amphitryon was the brother of Anaxo (wife of Electryon), and Perimede, wife of Licymnius. He was a husband of Alcmene, Electryon's daughter, and stepfather of the Greek hero Heracles.

Mykines (Greek: Μυκήνες, romanized: Mykínes), known before 1916 as Charvati (Χαρβάτι), is a village and a former municipality in Argolis, Peloponnese, Greece. Since the 2011 local government reform it is part of the municipality Argos-Mykines, of which it is a municipal unit. The municipal unit has an area of 159.033 km. It is located 1 km west of the ancient site of Mycenae and 2 km east of the highway linking Argos and Corinth. It is 9 km north of Argos.