A paniyiri is a traditional festival, often held as part of the observance of the feast of a saint or other religious celebration.
On August 15, in the forecourt of Panayia church in Panayia.
On the feast of Ayios Georgios, in the forecourt of Ayios Georgios church at Ayios Georgios.
On November 8, feast of the Archangels Michael and Gabriel.
On November 9, feast of Ayios Nektarios, in the courtyard of Ayios Nektarios church.
On August 28, eve of the beheading of Ayios Ioannis Prodromos (St John the Baptist), an evening service is held in the main chamber of the Ayios Ioannis Cave, with pilgrims from surrounding islands arriving to take part in the poignant service.
Also, throughout the summer, the local administration and the Union of Irakleiotes in Athens organize various cultural events, including theatrical performances and concerts.