3-day sport event which includes swimming, cycling and running, in late May.

The "Neighborhood of Christmas" awaits young and old residents and visitors every year at the Town Hall Square, with concerts, games and treats from nearby shops.

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.

In the beginning of May or October each year, Poros welcomes traditional and classic boats, with a rich cultural program on the sidelines of the boat show.

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").

With a great concert, a parade of masked people and the well-established "hunt of the lost treasure".

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.