The islet is part of a cluster of islands located south of Astypalea. It is uninhabited and administratively belongs to Astypalea. It is a protected habitat of Natura 2000 with code reference GR4210021. The islet is rich in fauna that includes populations of Mediterranean seals monachus monachus, dolphins, sea turtles careta careta, while the area is important for breeding of seabirds, like the falcons, the seagulls and the Mediterranean shearwaters.
On the islet there is a very beautiful double beach (a relatively narrow strip of land that joins one side of the islet with the other, forming a beach on both sides) with crystal clear, turquoise waters making the beach look like a swimming pool. The beach has white, thick pebbles and shallow, warm waters making it ideal for families with kids. There is no tourist infrastructure or natural shade on the island, so if you plan to visit it, it's good to have an umbrella to protect you from the hot Greek sun, some water aw well as some snacks with you.
You can access the small islet only by private boats. From the port of Pera Gialos there are daily trips to Kounoupes as well as to other beaches of the island. The trips of the tourist boats do not last for long, thus, the beach remains calm and not very busy for the most part of the day. Kounoupes is an exotic place, worth visiting during your stay in Astypalea.