The Long Island Sound is the large body of water between Long Island and mainland NY/CT; it continues west to form the border between the Bronx (mainland) and Queens (LI) boroughs of NYC.
Lake Champlain
there is no water between Estonia and Latvia
The English Channel lies between the UK and France.
The Mediterranean Sea lies between Morocco and Europe.
New Hampshire
What body of water lies between Honduras and Jamaica
Gulf of Aden
Atlantic ocean
The body of water that lies between Corsica and Sardinia is the Tyrrhenian Sea. The Tyrrhenian sea is 12,418 feet deep.
The Caribbean Sea.
Deleware river
That would be the Strait of Malacca.