yes
=Lake Ontario is 801 feet below sea level.=
Mediterranean Sea
I don't believe any lake is the size of Ontario. Perhaps the Caspian Sea is the size of Ontario. Ontario is enormous and contains thousands of lakes. Even Lake Ontario is nowhere near the size of province of the same name.
Ionean Sea, Mediterranean Sea, and Aegean Sea
The Ionian sea. Which is part of the mediteranian sea.
That Aegean Sea. The Aegean Sea
Rome is not on the coast of the Aegean Sea.
Greece and Turkey are very close neighbors only separated by "Aegean Sea" or in Turkish "Ege Denizi"
Ocean
The Niagara River connects Lake Erie and Lake Ontario.
The arm of the Mediterranean Sea between Greece and Turkey is the Aegean Sea.