The MAR region encompasses the largest coral reef in the Atlantic, and is part of the interconnected system of coastal habitats and currents that extends throughout the wider Caribbean. Its coastline stretches for 1,000 kilometers from the tip of the Yucatan Peninsula in Mexico to the Bay Islands in Honduras, passing through Belize and Guatemala. It is home to some of the world’s most stunning beaches and vibrant waters, with an astonishing array of over 500 known fish species, some of the largest remaining populations of manatees and sea turtles, possibly the largest known aggregation of whale sharks, and valuable concentrations of mangroves, sea grass, and coral reefs.