On the 14th of September, of the Holy Cross, in Mandraki there is a big festival, with a party on the eve, where plenty of traditional food, donuts and wine are offered.

The monastery of the Holy Cross in Nisyros is located in the southernmost and most remote point of Mandraki which is the largest settlement, the commercial port and the capital of the island. The chapel is built near the volcano and the view it offers is stunning.

Every year on the eve of the Holy Cross, on September 13, a big festival takes place. After the Vespers, the locals offer food consisting of goat yahni with barley, potatoes, rice, salad and donuts for dessert, while the violin and lute begin to play, giving the beginning of the long feast.