There can be no such body of water, because no place on Earth can have a latitude
coordinate greater than 90 degrees.
The north pole is at 90 degrees north latitude, and the south pole is at 90 degrees
south latitude. Those points are the farthest north and south you can go, respectively.
The body of water located at 15 degrees south latitude and 70 degrees west longitude is the South Atlantic Ocean.
20 S 80 W is in the South Pacific Ocean, off the coast of Peru, South America.
The body of water located at 20 degrees north and 90 degrees west is the Gulf of Mexico.
The body of water at 27 degrees north and 81 degrees west is the Gulf of Mexico.
South America is at 15 degrees south and 45 degrees west.
South Pacific Ocean
The South Pacific Ocean.
The body of water located at 15 degrees south latitude and 70 degrees west longitude is the South Atlantic Ocean.
Those co-ordinates would place you in the Atlantic ocean - to the west of Africa.
20 S 80 W is in the South Pacific Ocean, off the coast of Peru, South America.
The body of water located at 20 degrees north and 90 degrees west is the Gulf of Mexico.
Lake Superior is located at 47 degrees north and 88 degrees west. This body of water is the largest of the Great Lakes.
The body of water at 27 degrees north and 81 degrees west is the Gulf of Mexico.
Tropic of Capricorn
The Southern Ocean to the south and the Indian Ocean to the west.
South America is at 15 degrees south and 45 degrees west.
The western limit of the Strait of Gibraltor is at 36 degrees north and 6 degrees west.