As you can see on the map, there are places of- high and low altitude. This gives them the opportunity the farm both kinds of plants that require low or high altitude.
Also their most important resource, the ocean.

This was important for trade, waging wars on other counties, and food.
The way the Balkan peninsula was formed allowed many natural harbors and bays. This helped them trade and have a huge navy.
As you can see the pic at the left shows just some of the main bay ports.
The islands surrounding the mainland of Greece are volcanic. This influenced their religion , believing that these volcanoes were the entrances to the underworld. And that when the volcanoes erupted the gods were mad with man.

-Countryside on the peninsulas' shores often on consisted of hills and high slopes which a vantage point to them because they could build their buildings and houses like look outs. this gave them maximum visibility to oncoming enemies.
