carriben sea
Right on the E of Caribbean Sea.
The coordinates 18 degrees 15 minutes north, 77 degrees 30 minutes west correspond to a location in the Caribbean Sea, specifically southeast of Cuba and northwest of Jamaica.
53 degrees 15 minutes north latitude and 0 degrees 30 minutes west longitude is located in the North Sea, off the east coast of England.
Sengal
That coordinates point to a location in the Caribbean Sea, southeast of Nicaragua and north of Panama.
Costa Rica is in Central America, bordered by Nicaragua to the north, Panama to the east and south, the Pacific Ocean to the west and south and the Caribbean Sea to the east. It is between 90 degrees west and 75 degrees west. Also between the equator and 15 degrees north.
gabon
The line of 15 degrees north crosses the Atlantic Ocean, the Caribbean Sea, the Pacific Ocean, the Philippine Sea, the South China Sea, the Bay of Bengal, the Arabian Sea and the Indian Ocean.
The point is about a mile away from Noto Gouye Diame, Senegal.
South China Sea
15 degrees north and 95 degrees west
That point is in southwest Guatemala, about 42 miles northwest of the center of Guatemala City.