Greece is a rugged land. Ancient Greek farmers grew many fruits and foods, but their farms were smalls. Yet they still have a great supply of food, how is that possible? Almost everywhere they looked, they greeks saw the ocean. That is why the Ancient Greeks excelled at shipbuilding, mapmaking, seafaring, trading, and naval warfare. Geography plays a huge role in the development of technology, and the ancient Greeks' most important contributions to transportation involved in the sea. In 338 B.C., Philip of Macedonia conquered the Greek city-states and established Greece as a military power. His son, Alexander the great, then conquered most of the Mediterranean and the Near Eastern world (from Egypt to India). Greece's strength stemmed in large part from its seafaring technology. The Ancient Greeks didn't travel much, this is because they didn't need to, Ancient Greece also had a lot of mountainous terrains and that makes it hard to travel.
Land
Roads and bridges were very rare in ancient Greece, not only were they expensive, they also weren't necessary. Rich people would often own horses so they could travel around, while poor people would ride donkeys. But the most common transportation was walking, it didn't cost any money after all.
Sea
Sea travel was the preferred mode of transportation, Ancient Greeks were good at sailing because they had a lot of access to the sea. The boats are also good for storing goods and transporting things from place to place. Wagons, carriages, and carts were often used to transport goods, but the problem was they are expensive. That is why the Ancient greeks preferred to use ships. The rich greeks would buy slaves to carry their personal belongings, while the poor have to do it themselves.