Psychro Cave is an ancient Minoan sacred cave in Lasithi plateau in the Lasithi district of eastern Crete. Psychro is associated with the Diktaean Cave, one of the putative sites of the birth of Zeus. Other legends place Zeus' birthplace as Idaean Cave on Mount Ida. According to Hesiod, Theogony, Rhea gave birth to Zeus in Lyctus and hid him in a cave of Mount Aegaeon. Since the late nineteenth century the cave above the modern village of Psychro has been identified with Diktaean Cave, although there are other candidates, especially a cave above Palaikastro on Mount Petsofas.

The Lasithi Plateau is a high endorheic plateau, located in the Lasithi regional unit in eastern Crete, Greece. Since the 1997 Kapodistrias reform, it is a municipality whose seat is Tzermiado and the second biggest village is Agios Georgios. The municipality has an area of 129.9 km2.