Petalioi
Petalioi is an island complex in south-east of Euboea, in the homonymous gulf. It consists of 10 small islands and islets almost all uninhabited. The total area of the complex is. They belong to Karystos municipality, in Marmari municipal unit. The islands of the complex are: Megalonisos, Chersonisi, Avgo, Lamperousa, Louloudi, Makronisi, Pontikoniso, Praso, Tragos and Founti. The largest of them is Megalonisos. It has an area of and is uninhabited. Most of them are privately owned and belong to Greek shipowners.