The name Aegina reffers to the island in the center of the Saronic gulf and simultaneously - as in almost all small to medium in size islands - to the main settlement on the island.
The island has the shape of an inverted equilateral triangle and covers about 80 sq.km. The 60 km long coastline has open bays and rounded capes.
The morphology of Aegina island is mild, restless along the volcanic southern part, where the highest peak (Mt. Oros, 532 m) is found, while the northern part has the characteristic form of calcareous areas, with large slopes of uniform gradient.
The inhabitation system, at least in its modern version, is typical of small islands: everything is oriented towards the sea - even the few and very small inland settlements ride on ridges looking the sea. A continuous inhabited zone spreads along the northern and eastern coast: 95% of the population is concentrated here. Seasonal housing gradually transforms Aegina to an suburb of Athens.