Under the sea: Mexico's colorful coral reefs

With more than 11,000 km (6,835 mi) of coastline, Mexico's warm and shallow waters are easily penetrable by the sun, which helps form one of the most diverse ecosystems of the seas. Whether you know a little or a lot about the underwater world, Mexico's waters will not fail to amaze you. Its coral reefs are beautiful, fragile ecosystems that must be treated and admired with the utmost care. Click through the gallery and "sea" for yourself.