Prasonisi is a small, uninhabited islet located off the northeastern coast of Crete, forming part of the Dionysades islet group. It lies north of Dragonada and east of Gianysada, contributing to a remote and ecologically important cluster of islets in the Cretan Sea.

The islet is characterized by its rocky terrain and low, resilient vegetation, which gives it a subtle greenish hue—hence its name. Its coastline is mostly steep and rugged, shaped by strong winds and the constant action of the sea, creating a raw and untouched natural landscape.

Like the rest of the Dionysades, Prasonisi is included in the Natura 2000 network of protected areas, hosting important seabird populations and supporting the region’s biodiversity. Human presence is virtually nonexistent, allowing the natural environment to remain undisturbed.

Access to the islet is possible only by sea and under certain conditions, due to its protected status. Although it lacks any tourist infrastructure, Prasonisi stands out for its authenticity and unspoiled beauty, representing a distinctive example of Crete’s wild natural heritage.