Sapodilla Cayes is an uninhabited atoll

Atoll

An atoll is a coral island that encircles a lagoon partially or completely.- Usage :The word atoll comes from the Dhivehi word atholhu OED...

 in the Gulf of Honduras

Gulf of Honduras

The Gulf or Bay of Honduras is a large inlet of the Caribbean Sea, indenting the coasts of Belize, Guatemala, and Honduras. From north to south, it runs for approximately 200 km from Dangriga, Belize, to La Ceiba, Honduras....

. It is generally considered to be within the territorial waters of Belize

Belize

Belize is a constitutional monarchy and the northernmost country in Central America. Belize has a diverse society, comprising many cultures and languages. Even though Kriol and Spanish are spoken among the population, Belize is the only country in Central America where English is the official...

, but Guatemala

Guatemala

Guatemala is a country in Central America bordered by Mexico to the north and west, the Pacific Ocean to the southwest, Belize to the northeast, the Caribbean to the east, and Honduras and El Salvador to the southeast...

 claims that the Belize–Guatemala maritime boundary

Maritime boundary

Maritime boundary is a conceptual means of division of the water surface of the planet into maritime areas that are defined through surrounding physical geography or by human geography. As such it usually includes areas of exclusive national rights over the mineral and biological resources,...

 is northwest of Sapodilla. Honduras

Honduras

Honduras is a republic in Central America. It was previously known as Spanish Honduras to differentiate it from British Honduras, which became the modern-day state of Belize...

 also lays claims to Sapodilla Caye in its 1982 constitution.

Marine reserve

Sapodilla Cayes Marine Reserve is a national protected marine reserve declared over the Sapodilla Cayes. It was established in 1996 and is administered by the Fisheries Department of Belize.