The caves of KasosEllinokamara cave (Archaelogical): A place of worship from the Mycenaean to the Hellenistic period, it served as a refuge for the locals during the pirate raids.Selai cave (aka Stilokamara): A mountain cave southwest of Agia Marina with impressive stalactites.Beaches in Kasos island Although modest in size, Kasos has plenty of opportunities for you to enjoy a swim, such as Antiperatos, Ammoua, Katarti, Vrisi and Kofteri. Avlaki is a small beach with sea caves on the south side of the island. Impressive Trita has Tripitos, an arch- shaped rock, as its hallmark.The Monasteries of Kasos Agios Mamas: It is southeast of Poli and the infinite expanse of the Libyan sea lies seductively at its threshold. The blend of Byzantine tradition and Aegean landscape here is captivating. On the saint’s holy day, September 2nd, lots of people spend the night in the monastery’s dormitories.