If you are looking for truly memorable holidays, offering much sightseeing and great beaches, you could not do much better than visit Poros.
Poros is a great base from which to explore other nearby cities such as Nafplio (50-minute drive), Metochi (just opposite Ydra island), Kosta, Porto Cheli and the Ancient Theater of Epidaurus (30-minute drive). Highlights near Poros also include the island of Methana with the volcanic areas to the north of Kameni Chora.
Epidaurus, Greece
Epidaurus was a small city (polis) in ancient Greece, on the Argolid Peninsula at the Saronic Gulf. Two modern towns bear the name Epidavros:Palaia Epidavros and Nea Epidavros. Since 2010 they belong to the new municipality of Epidaurus, part of the regional unit of Argolis. The seat of the municipality is the town Lygourio. Source : Wikipedia.com
Mycenae, Mykines, Greece
Mycenae (Ancient Greek: Μυκῆναι or Μυκήνη, Mycēnē) 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.
Source : Wikipedia.com
Porto Cheli, Greece
Porto Heli (Greek: Πορτοχέλι, also Porto Cheli) is a summer resort town in the municipality of Ermionida in the southeastern part of Argolis, Greece. It is situated on a bay of the Argolic Gulf, 6 km south of Kranidi and 40 km southeast of Nafplio. The island of Spetses is located 6 km south of Porto Heli.
Source : Wikipedia.com