Name one advantage for the Athenians and the Spartans

Athens was fortunate in that it was located near the sea, which aided their excellent trading system. Although the mountains protected Sparta, they also posed a trade barrier because the Spartans had no way of getting around them to trade with other people.

Sources:

Differences : Advantages And Disadvantages Of Athens And Sparta - Bartleby.comSparta and Athens Advantages and Disadvantages - Quizlet https://www.history.com/topics/ancient-history/peloponnesian-war