When you first enter Greece without a valid visa, you need to go through a Reception and Identification Center (RIC).
At the RIC, the Reception and Identification Service will:
If you express that you want to apply for asylum in Greece, RIC officials will refer you to the nearest Asylum Office.
If you don’t want to apply for asylum in Greece, RIC officials will refer you to the police.
There is also the option to apply for IOM’s Assisted Voluntary Return.
Pili, Kos 85300