Arkoi is a small Greek island which belongs to the municipality of Patmos, and has a population of less than 60 inhabitants. The majority of the population find employment either in fishing, goat herding or helping to run one of the island's four tavernas. On the hill overlooking the main harbour are situated the ruins of an acropolis. Although little remains of the structure, the stones used to build it make a good viewpoint at which to see the sun set over the Aegean. At one end of the island, towards the island of Lipsi is the best beach on the island, Tiganakia. At the other end of the island, in the direction of Samos, is what is referred to as the 'Italian jail'.