Greece is a peninsula, which means that it is surrounded on three sides by water. Greece has a lot of smaller peninsulas sticking out from it, which means Greece enjoys many natural harbors. 

Greece is also covered with mountains. They are not huge mountains but if you are trying to go from place to place in Greece, you'll find the mountains a bit of a hindrance. 

Three thousand years ago, it was very difficult to get from place to place in ancient Greece by walking. But it was easy to get from place to place in Greece by boat. 

In the ancient world that grew up around the Mediterranean Sea, the Greeks became known as great sailors. They sailed about the Mediterranean, setting up colonies and outposts where they could. They tried to set up a colony or two in Egypt, but the Egyptians chased them away. They had more luck establishing new towns on the coast of Turkey, on the coast of Italy, on the coast of Africa, and on the coast of France. 

Meanwhile, back in mainland Greece, cities were thriving. The soil was mostly fertile. The Greeks had a wealth of seafood, fresh fish, a wealth of vegetables, and fresh drinking water. The Greeks were very happy with their land.