17° North latitude, 88° West longitude is located in the Caribbean Sea, specifically in the southwestern part of the Yucatan Peninsula, which is part of Mexico.

This location is close to the following:

* Belize: The northern part of Belize is just a few miles east of this location.

* Chetumal, Mexico: A city on the eastern coast of the Yucatan Peninsula, approximately 20 miles north of this location.

* The Belize Barrier Reef: A major natural feature, it runs parallel to the coast of Belize and is close to this longitude line.

Let me know if you have any other questions!