The islands are the main characteristic of Greece's morphology and an integral part of the country's culture across the ages. The country includes 6,000 islands and islets scattered across the Greek seas, of which only 227 islands are inhabited.

The Greek coastline offers a diverse landscape: beaches stretching over many kilometres, sheltered bays and coves, sandy beaches, sand dunes, pebble beaches, wetlands and deltas, caves formed by seawater, and dark-coloured sand in volcanic areas.