Professors and students from all over the world participate in piano recitals in late August, including the great full-moon recital in the archaeological site of the ancient temple of Poseidon.

Saronic Chamber Music Festival – Syngros open air theatre (beginning of August)

Cultural events during the last weekend of August at the port, celebrating the anniversary of the determination of the first Greek borders, in Poros in 1828. The events aim at establishing Poros as a main destination in August and the highlighting of the importance of the contribution of Poros to modern Greek State History.

Cultural events at the end of July. Revival of old local customs, exhibition with local products, concerts (co-organizing with the Women's Cultural Association "Poriotissa").

Born 1885 on Poros, Alexandros Koryzis came from a background of privilege. Both his grandfather and his father were politicians; his father was elected to Parliament three times and served as Poros mayor from 1895 to 1899.

The Dana Lighthouse standing at the mouth of the Poros channel was built in 1870 by the French Society of Ottoman Lighthouses. It is one of the prettiest stone-built square lighthouses in Greece and a monument of modern maritime history. The lighthouse rises to nine meters and its focal length reaches 32 meters.

The iconic Poros clock tower (roloi) was built in 1927 with a donation by Ioannis H. Papadopoulos, a member of Parliament representing Trizina. His gift included the clock mechanism, which was made in America in 1915.

The Russian Naval Base (Rossikos) was built amphitheatrically along a picturesque bay west of the island’s harbor. After the end of the Russo-Turkish war, Poros’s sheltered harbor served as the Russian fleet’s supply station where the Russian built an infrastructure that included kitchens for baking ship's biscuits and warehouses for storing coal and other supplies.