• Sian Ka’an Biosphere Reserve was established on January 20th 1986
• In December 1987, Sian Ka’an Biosphere Reserve was declared a World Heritage Property by UNESCO, thanks to its unique biodiversity and fascinating Mayan Culture.


• Sian Ka’an Biosphere Reserve is part of UNESCO’s Man and the Biosphere (MAB) program, which aims to improve the relationship between people and their environment
• Sian Ka'an Biosphere Reserve covers 652,000 hectares – or 1.3 million acres – making it the 3th largest Biosphere Reserve in the Mexican Caribbean and the largest coastal protected area in Mexico
• The Mesoamerican Barrier Reef is the second largest barrier reef in the world with 1300km after the Australia Great barrier with 2500 km long
• Sian Ka'an Biosphere Reserve is the third largest Natural Protected area in Mexico
• Sian Ka'an Biosphere Reserve covers 10% of the State of Quintana Roo
• Sian Ka'an is about twise the size of Rode Island, USA


• By 2020, 379 species of bird had been identified in the Reserve
• The area is also home to 115 species of mammals, 90 species of native bees, 47 species of dragonflies, 74 species of beetles, 276 species of crustaceans, 310 species of mosquitoes and 318 species of butterflies, more then 500 species of fish.
• The barrier reef is made up of more than 84 species of coral, including the “brain coral” which can reach up to seven meters in diameter
• It is visited by hundreds of species of fish, including macabí, sharks, shad, bass, and palometa
• There are 1048 species of flora, including the chit palm, kuka, despeinada, siricote de playa, uva de mar, chacá or palo mulato, riñonina and water lily, as well as mahogany, cedar, rosewood, jícaro and pucté
• Visitors can expect to see creatures that are rarely found elsewhere, including manatees, four species of marine turtle, howler and spider monkeys, crocodiles, the rare Jabiru stork, jaguars, pumas, ocelots, pink flamingos, toucans and tapirs and much more
• Sian Ka'an Biosphere Reserve boast 150,000 hectares of deciduous and semi-evergreen forest
• The petens, which can grow up to 30 meters tall, are only found here, in Florida and in Cuba
• Sian Ka'an Biosphere Reserve presents a variety of marine grass, inlets, mangroves, marshes and coastal and in-land lagoons


• The climate is tropical with summer rains
• In January, the average monthly temperature is 72°F, rising to 82°F in May
• Most of the rain falls between May and October, with September the wettest month


• There are no indigenous groups within Sian Ka'an Biosphere Reserve
• Most of the population (about 1500 people) live in the fishing villages of Javier Rojo Gómez (Punta Allen) and Punta Herrero.