Why did the location of greeks settlements allow contact with other civillization

Greek settlements allowed for easier contact with other civilizations.

Ancient Greece is made up of mountainous terrain that often separated its inhabitants making internal communication difficult. Greece is surrounded by seas, leading the ancient Greeks to become skilled seamen and assisting with the ability to interact and trade with neighboring regions for foods and goods.

can you give a picture of the map, i'll be able to update my answer!