Kyra Panagia or Pelagonisi is the largest of the Northern Sporades deserts. It is located northeast of Alonissos a short distance from it. The area of the island is 25 sq. Km.
Alonissos is located in the Aegean Sea and belongs to the Sporades island complex. Its coastline is about 67 km. Maximum length is about 20 km and width of 3 to 4.5 km. It is separated from Skopelos southwest by the Alonnisos port, 2 miles wide and northeast by the Pelagonisi island by the coast. Pelagonisi, 3.5 nm Patitiri bay is the seaport of the island. The island was called Ikos in antiquity, while Alonissos was called by the ancient Greeks as one of the neighboring islands, probably todayʼs Kyra Panagia or todayʼs Saint Efstratios. The island of Icos, and todayʼs Alonissos, presents the longest history of human presence in the Aegean. The first human settlement of Alonissos dates back to the Middle Paleolithic Age, when it is believed that the island was united with the other islands and Thessaly