What are the three bodies of water that form the backdrop for the spartan and athenian campaigns?

The three bodies of water that form the backdrop for the Spartan and Athenian campaigns during the Peloponnesian War are the Aegean Sea, the Ionian Sea, and the Mediterranean Sea. The Aegean Sea lies between the Greek mainland and the coast of Asia Minor, serving as a crucial route for naval engagements. The Ionian Sea is located to the west of mainland Greece, also playing a significant role in naval strategy. The Mediterranean Sea, being the larger body, connects these regions and facilitates trade and military movements between city-states.