The Gulf (or Bay) of Honduras is a large inlet of the Caribbean Sea, indenting the coasts of Mexico, Belize, Guatemala, and Honduras. From north to south it runs from Cape Catoche to Caxinas Point.
The inner Gulf of Honduras is lined by the Belize Barrier Reef which forms the southern part of the 900Â km (600 mile) long Mesoamerican Barrier Reef System, the second-largest coral reef system in the world. The Belize Barrier Reef includes a number of small islands, called cays, and collectively known as the Pelican Cays.